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4
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1 ;; Simple SMTP protocol (RFC 821) for sending mail
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2
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3 ;; Copyright (C) 1995, 1996 Free Software Foundation, Inc.
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4
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5 ;; Author: Tomoji Kagatani <kagatani@rbc.ncl.omron.co.jp>
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6 ;; Maintainer: Brian D. Carlstrom <bdc@ai.mit.edu>
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7 ;; Keywords: mail
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8
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9 ;; This file is part of XEmacs.
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10
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11 ;; XEmacs is free software; you can redistribute it and/or modify it
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12 ;; under the terms of the GNU General Public License as published by
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13 ;; the Free Software Foundation; either version 2, or (at your option)
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14 ;; any later version.
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15
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16 ;; XEmacs is distributed in the hope that it will be useful, but
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17 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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18 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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19 ;; General Public License for more details.
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20
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21 ;; You should have received a copy of the GNU General Public License
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22 ;; along with XEmacs; see the file COPYING. If not, write to the Free
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23 ;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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24 ;; 02111-1307, USA.
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25
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26 ;;; Synched up with: FSF 19.34.
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27
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28 ;;; Commentary:
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29
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30 ;; Send Mail to smtp host from smtpmail temp buffer.
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31
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32 ;; Please add these lines in your .emacs(_emacs).
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33 ;;
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34 ;;(setq send-mail-function 'smtpmail-send-it)
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35 ;;(setq smtpmail-default-smtp-server "YOUR SMTP HOST")
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36 ;;(setq smtpmail-smtp-service "smtp")
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37 ;;(setq smtpmail-local-domain "YOUR DOMAIN NAME")
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38 ;;(setq smtpmail-debug-info t)
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39 ;;(load-library "smtpmail")
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40 ;;(setq smtpmail-code-conv-from nil)
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41 ;;(setq user-full-name "YOUR NAME HERE")
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42
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43 ;;; Code:
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44
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45 (require 'sendmail)
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46
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47 ;;;
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134
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48 (defgroup smtpmail nil
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49 "SMTP protocol for sending mail."
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50 :group 'mail)
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51
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52
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134
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53 (defcustom smtpmail-default-smtp-server nil
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54 "*Specify default SMTP server."
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55 :type '(choice (const nil) string)
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56 :group 'smtpmail)
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57
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58 (defcustom smtpmail-smtp-server
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59 (or (getenv "SMTPSERVER") smtpmail-default-smtp-server)
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134
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60 "*The name of the host running SMTP server."
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61 :type '(choice (const nil) string)
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62 :group 'smtpmail)
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63
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134
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64 (defcustom smtpmail-smtp-service 25
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65 "*SMTP service port number. smtp or 25 ."
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66 :type '(choice (integer :tag "Port") (string :tag "Service"))
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67 :group 'smtpmail)
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68
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134
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69 (defcustom smtpmail-local-domain nil
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70 "*Local domain name without a host name.
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71 If the function (system-name) returns the full internet address,
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134
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72 don't define this value."
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73 :type '(choice (const nil) string)
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74 :group 'smtpmail)
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75
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134
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76 (defcustom smtpmail-debug-info nil
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77 "*smtpmail debug info printout. messages and process buffer."
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78 :type 'boolean
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79 :group 'smtpmail)
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80
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134
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81 (defcustom smtpmail-code-conv-from nil ;; *junet*
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82 "*smtpmail code convert from this code to *internal*..for tiny-mime.."
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83 :type 'boolean
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84 :group 'smtpmail)
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85
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86 ;;;
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87 ;;;
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88 ;;;
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89
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90 (defun smtpmail-send-it ()
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91 (require 'mail-utils)
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92 (let ((errbuf (if mail-interactive
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93 (generate-new-buffer " smtpmail errors")
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94 0))
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95 (tembuf (generate-new-buffer " smtpmail temp"))
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96 (case-fold-search nil)
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97 resend-to-addresses
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98 delimline
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99 (mailbuf (current-buffer)))
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100 (unwind-protect
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101 (save-excursion
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102 (set-buffer tembuf)
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103 (erase-buffer)
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104 (insert-buffer-substring mailbuf)
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105 (goto-char (point-max))
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106 ;; require one newline at the end.
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107 (or (= (preceding-char) ?\n)
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108 (insert ?\n))
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109 ;; Change header-delimiter to be what sendmail expects.
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110 (goto-char (point-min))
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111 (re-search-forward
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112 (concat "^" (regexp-quote mail-header-separator) "\n"))
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113 (replace-match "\n")
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114 (backward-char 1)
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115 (setq delimline (point-marker))
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116 ;; (sendmail-synch-aliases)
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126
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117 (if (and mail-aliases (fboundp 'expand-mail-aliases)) ; XEmacs
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118 (expand-mail-aliases (point-min) delimline))
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119 (goto-char (point-min))
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120 ;; ignore any blank lines in the header
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121 (while (and (re-search-forward "\n\n\n*" delimline t)
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122 (< (point) delimline))
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123 (replace-match "\n"))
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124 (let ((case-fold-search t))
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125 (goto-char (point-min))
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126 (goto-char (point-min))
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127 (while (re-search-forward "^Resent-to:" delimline t)
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128 (setq resend-to-addresses
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129 (save-restriction
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130 (narrow-to-region (point)
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131 (save-excursion
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132 (end-of-line)
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133 (point)))
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134 (append (mail-parse-comma-list)
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135 resend-to-addresses))))
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136 ;;; Apparently this causes a duplicate Sender.
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137 ;;; ;; If the From is different than current user, insert Sender.
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138 ;;; (goto-char (point-min))
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139 ;;; (and (re-search-forward "^From:" delimline t)
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140 ;;; (progn
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141 ;;; (require 'mail-utils)
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142 ;;; (not (string-equal
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143 ;;; (mail-strip-quoted-names
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144 ;;; (save-restriction
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145 ;;; (narrow-to-region (point-min) delimline)
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146 ;;; (mail-fetch-field "From")))
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147 ;;; (user-login-name))))
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148 ;;; (progn
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149 ;;; (forward-line 1)
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150 ;;; (insert "Sender: " (user-login-name) "\n")))
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151 ;; Don't send out a blank subject line
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152 (goto-char (point-min))
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153 (if (re-search-forward "^Subject:[ \t]*\n" delimline t)
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154 (replace-match ""))
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155 ;; Put the "From:" field in unless for some odd reason
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156 ;; they put one in themselves.
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157 (goto-char (point-min))
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158 (if (not (re-search-forward "^From:" delimline t))
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114
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159 (let* ((login (user-mail-address))
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160 (fullname (user-full-name)))
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161 (cond ((eq mail-from-style 'angles)
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162 (insert "From: " fullname)
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163 (let ((fullname-start (+ (point-min) 6))
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164 (fullname-end (point-marker)))
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165 (goto-char fullname-start)
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166 ;; Look for a character that cannot appear unquoted
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167 ;; according to RFC 822.
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168 (if (re-search-forward "[^- !#-'*+/-9=?A-Z^-~]"
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169 fullname-end 1)
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170 (progn
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171 ;; Quote fullname, escaping specials.
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172 (goto-char fullname-start)
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173 (insert "\"")
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174 (while (re-search-forward "[\"\\]"
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175 fullname-end 1)
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176 (replace-match "\\\\\\&" t))
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177 (insert "\""))))
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178 (insert " <" login ">\n"))
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179 ((eq mail-from-style 'parens)
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180 (insert "From: " login " (")
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181 (let ((fullname-start (point)))
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182 (insert fullname)
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183 (let ((fullname-end (point-marker)))
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184 (goto-char fullname-start)
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185 ;; RFC 822 says \ and nonmatching parentheses
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186 ;; must be escaped in comments.
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187 ;; Escape every instance of ()\ ...
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188 (while (re-search-forward "[()\\]" fullname-end 1)
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189 (replace-match "\\\\\\&" t))
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190 ;; ... then undo escaping of matching parentheses,
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191 ;; including matching nested parentheses.
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192 (goto-char fullname-start)
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193 (while (re-search-forward
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194 "\\(\\=\\|[^\\]\\(\\\\\\\\\\)*\\)\\\\(\\(\\([^\\]\\|\\\\\\\\\\)*\\)\\\\)"
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195 fullname-end 1)
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196 (replace-match "\\1(\\3)" t)
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197 (goto-char fullname-start))))
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198 (insert ")\n"))
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199 ((null mail-from-style)
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200 (insert "From: " login "\n")))))
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201 ;; Insert an extra newline if we need it to work around
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202 ;; Sun's bug that swallows newlines.
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203 (goto-char (1+ delimline))
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204 (if (eval mail-mailer-swallows-blank-line)
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205 (newline))
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206 ;; Find and handle any FCC fields.
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207 (goto-char (point-min))
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208 (if (re-search-forward "^FCC:" delimline t)
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209 (mail-do-fcc delimline))
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210 (if mail-interactive
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211 (save-excursion
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212 (set-buffer errbuf)
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213 (erase-buffer))))
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214 ;;
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215 ;;
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216 ;;
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217 (setq smtpmail-address-buffer (generate-new-buffer "*smtp-mail*"))
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218 (setq smtpmail-recipient-address-list
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219 (or resend-to-addresses
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220 (smtpmail-deduce-address-list tembuf (point-min) delimline)))
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221 (kill-buffer smtpmail-address-buffer)
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222
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223 (smtpmail-do-bcc delimline)
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224
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225 (if (not (null smtpmail-recipient-address-list))
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226 (if (not (smtpmail-via-smtp smtpmail-recipient-address-list tembuf))
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227 (error "Sending failed; SMTP protocol error"))
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228 (error "Sending failed; no recipients"))
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229 )
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230 (kill-buffer tembuf)
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231 (if (bufferp errbuf)
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232 (kill-buffer errbuf)))))
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233
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234
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235 ;(defun smtpmail-via-smtp (host,port,sender,destination,smtpmail-text-buffer)
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236
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237 (defun smtpmail-fqdn ()
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238 (if smtpmail-local-domain
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239 (concat (system-name) "." smtpmail-local-domain)
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240 (system-name)))
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241
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242 (defun smtpmail-via-smtp (recipient smtpmail-text-buffer)
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243 (let ((process nil)
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244 (host smtpmail-smtp-server)
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245 (port smtpmail-smtp-service)
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246 response-code
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247 greeting
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248 process-buffer)
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249 (unwind-protect
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250 (catch 'done
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251 ;; get or create the trace buffer
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252 (setq process-buffer
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253 (get-buffer-create (format "*trace of SMTP session to %s*" host)))
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254
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255 ;; clear the trace buffer of old output
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256 (save-excursion
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257 (set-buffer process-buffer)
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258 (erase-buffer))
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259
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260 ;; open the connection to the server
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261 (setq process (open-network-stream "SMTP" process-buffer host port))
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262 (and (null process) (throw 'done nil))
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263
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264 ;; set the send-filter
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265 (set-process-filter process 'smtpmail-process-filter)
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266
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267 (save-excursion
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268 (set-buffer process-buffer)
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269 (make-local-variable 'smtpmail-read-point)
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270 (setq smtpmail-read-point (point-min))
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271
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272
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273 (if (or (null (car (setq greeting (smtpmail-read-response process))))
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274 (not (integerp (car greeting)))
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275 (>= (car greeting) 400))
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276 (throw 'done nil)
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277 )
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278
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279 ;; HELO
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280 (smtpmail-send-command process (format "HELO %s" (smtpmail-fqdn)))
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281
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282 (if (or (null (car (setq response-code (smtpmail-read-response process))))
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283 (not (integerp (car response-code)))
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284 (>= (car response-code) 400))
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285 (throw 'done nil)
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286 )
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287
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288 ;; MAIL FROM: <sender>
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289 ; (smtpmail-send-command process (format "MAIL FROM:%s@%s" (user-login-name) (smtpmail-fqdn)))
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114
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290 (smtpmail-send-command process (format "MAIL FROM: <%s>" (user-mail-address)))
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291
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292 (if (or (null (car (setq response-code (smtpmail-read-response process))))
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293 (not (integerp (car response-code)))
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294 (>= (car response-code) 400))
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295 (throw 'done nil)
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296 )
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297
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298 ;; RCPT TO: <recipient>
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299 (let ((n 0))
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300 (while (not (null (nth n recipient)))
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301 (smtpmail-send-command process (format "RCPT TO: <%s>" (nth n recipient)))
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302 (setq n (1+ n))
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303
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304 (if (or (null (car (setq response-code (smtpmail-read-response process))))
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305 (not (integerp (car response-code)))
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306 (>= (car response-code) 400))
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307 (throw 'done nil)
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308 )
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309 ))
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310
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311 ;; DATA
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312 (smtpmail-send-command process "DATA")
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313
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314 (if (or (null (car (setq response-code (smtpmail-read-response process))))
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315 (not (integerp (car response-code)))
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316 (>= (car response-code) 400))
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317 (throw 'done nil)
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318 )
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319
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320 ;; Mail contents
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321 (smtpmail-send-data process smtpmail-text-buffer)
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322
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323 ;;DATA end "."
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324 (smtpmail-send-command process ".")
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325
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326 (if (or (null (car (setq response-code (smtpmail-read-response process))))
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327 (not (integerp (car response-code)))
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328 (>= (car response-code) 400))
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329 (throw 'done nil)
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330 )
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331
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332 ;;QUIT
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333 ; (smtpmail-send-command process "QUIT")
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334 ; (and (null (car (smtpmail-read-response process)))
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335 ; (throw 'done nil))
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336 t ))
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337 (if process
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338 (save-excursion
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339 (set-buffer (process-buffer process))
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340 (smtpmail-send-command process "QUIT")
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341 (smtpmail-read-response process)
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342
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343 ; (if (or (null (car (setq response-code (smtpmail-read-response process))))
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344 ; (not (integerp (car response-code)))
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345 ; (>= (car response-code) 400))
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346 ; (throw 'done nil)
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347 ; )
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348 (delete-process process))))))
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349
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350
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351 (defun smtpmail-process-filter (process output)
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352 (save-excursion
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353 (set-buffer (process-buffer process))
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354 (goto-char (point-max))
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355 (insert output)))
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356
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357 (defun smtpmail-read-response (process)
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358 (let ((case-fold-search nil)
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359 (response-string nil)
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360 (response-continue t)
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361 (return-value '(nil ""))
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362 match-end)
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363
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364 ; (setq response-string nil)
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365 ; (setq response-continue t)
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366 ; (setq return-value '(nil ""))
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367
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368 (while response-continue
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369 (goto-char smtpmail-read-point)
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370 (while (not (search-forward "\r\n" nil t))
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371 (accept-process-output process)
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372 (goto-char smtpmail-read-point))
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373
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374 (setq match-end (point))
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375 (if (null response-string)
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376 (setq response-string
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377 (buffer-substring smtpmail-read-point (- match-end 2))))
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378
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379 (goto-char smtpmail-read-point)
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380 (if (looking-at "[0-9]+ ")
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381 (progn (setq response-continue nil)
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382 ; (setq return-value response-string)
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383
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384 (if smtpmail-debug-info
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385 (message response-string))
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386
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387 (setq smtpmail-read-point match-end)
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388 (setq return-value
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389 (cons (string-to-int
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390 (buffer-substring (match-beginning 0) (match-end 0)))
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391 response-string)))
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392
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393 (if (looking-at "[0-9]+-")
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394 (progn (setq smtpmail-read-point match-end)
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395 (setq response-continue t))
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396 (progn
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397 (setq smtpmail-read-point match-end)
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398 (setq response-continue nil)
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399 (setq return-value
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400 (cons nil response-string))
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401 )
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402 )))
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403 (setq smtpmail-read-point match-end)
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404 return-value))
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405
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406
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407 (defun smtpmail-send-command (process command)
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408 (goto-char (point-max))
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409 (if (= (aref command 0) ?P)
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410 (insert "PASS <omitted>\r\n")
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411 (insert command "\r\n"))
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412 (setq smtpmail-read-point (point))
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413 (process-send-string process command)
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414 (process-send-string process "\r\n"))
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415
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416 (defun smtpmail-send-data-1 (process data)
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417 (goto-char (point-max))
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418
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419 (if (not (null smtpmail-code-conv-from))
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420 (setq data (code-convert-string data smtpmail-code-conv-from *internal*)))
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421
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422 (if smtpmail-debug-info
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423 (insert data "\r\n"))
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424
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425 (setq smtpmail-read-point (point))
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426 ;; Escape "." at start of a line
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427 (if (eq (string-to-char data) ?.)
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428 (process-send-string process "."))
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429 (process-send-string process data)
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430 (process-send-string process "\r\n")
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431 )
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432
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433 (defun smtpmail-send-data (process buffer)
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434 (let
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435 ((data-continue t)
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436 (sending-data nil)
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437 this-line
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438 this-line-end)
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439
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440 (save-excursion
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441 (set-buffer buffer)
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442 (goto-char (point-min)))
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443
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444 (while data-continue
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445 (save-excursion
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446 (set-buffer buffer)
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447 (beginning-of-line)
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448 (setq this-line (point))
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449 (end-of-line)
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450 (setq this-line-end (point))
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451 (setq sending-data nil)
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452 (setq sending-data (buffer-substring this-line this-line-end))
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453 (if (/= (forward-line 1) 0)
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454 (setq data-continue nil)))
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455
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456 (smtpmail-send-data-1 process sending-data)
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457 )
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458 )
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459 )
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460
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461
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462 (defun smtpmail-deduce-address-list (smtpmail-text-buffer header-start header-end)
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463 "Get address list suitable for smtp RCPT TO: <address>."
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464 (require 'mail-utils) ;; pick up mail-strip-quoted-names
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465 (let
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126
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466 ((simple-address-list "")
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4
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467 this-line
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468 this-line-end
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469 addr-regexp)
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470
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471 (unwind-protect
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472 (save-excursion
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473 ;;
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474 (set-buffer smtpmail-address-buffer) (erase-buffer)
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126
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475 (let ((case-fold-search t))
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4
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476 (insert-buffer-substring smtpmail-text-buffer header-start header-end)
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477 (goto-char (point-min))
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478 ;; RESENT-* fields should stop processing of regular fields.
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479 (save-excursion
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480 (if (re-search-forward "^RESENT-TO:" header-end t)
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481 (setq addr-regexp "^\\(RESENT-TO:\\|RESENT-CC:\\|RESENT-BCC:\\)")
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482 (setq addr-regexp "^\\(TO:\\|CC:\\|BCC:\\)")))
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483
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484 (while (re-search-forward addr-regexp header-end t)
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485 (replace-match "")
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486 (setq this-line (match-beginning 0))
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487 (forward-line 1)
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488 ;; get any continuation lines
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489 (while (and (looking-at "^[ \t]+") (< (point) header-end))
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490 (forward-line 1))
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491 (setq this-line-end (point-marker))
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492 (setq simple-address-list
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493 (concat simple-address-list " "
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494 (mail-strip-quoted-names (buffer-substring this-line this-line-end))))
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495 )
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496 (erase-buffer)
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497 (insert-string " ")
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498 (insert-string simple-address-list)
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499 (insert-string "\n")
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500 (subst-char-in-region (point-min) (point-max) 10 ? t);; newline --> blank
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501 (subst-char-in-region (point-min) (point-max) ?, ? t);; comma --> blank
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502 (subst-char-in-region (point-min) (point-max) 9 ? t);; tab --> blank
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503
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|
504 (goto-char (point-min))
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|
505 ;; tidyness in case hook is not robust when it looks at this
|
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506 (while (re-search-forward "[ \t]+" header-end t) (replace-match " "))
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507
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|
|
508 (goto-char (point-min))
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|
509 (let (recipient-address-list)
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510 (while (re-search-forward " \\([^ ]+\\) " (point-max) t)
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|
511 (backward-char 1)
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|
512 (setq recipient-address-list (cons (buffer-substring (match-beginning 1) (match-end 1))
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|
|
513 recipient-address-list))
|
|
|
514 )
|
|
|
515 (setq smtpmail-recipient-address-list recipient-address-list))
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|
|
516
|
|
126
|
517 ))
|
|
4
|
518 )
|
|
|
519 )
|
|
|
520 )
|
|
|
521
|
|
|
522
|
|
|
523 (defun smtpmail-do-bcc (header-end)
|
|
|
524 "Delete BCC: and their continuation lines from the header area.
|
|
|
525 There may be multiple BCC: lines, and each may have arbitrarily
|
|
|
526 many continuation lines."
|
|
|
527 (let ((case-fold-search t))
|
|
|
528 (save-excursion (goto-char (point-min))
|
|
|
529 ;; iterate over all BCC: lines
|
|
|
530 (while (re-search-forward "^BCC:" header-end t)
|
|
|
531 (delete-region (match-beginning 0) (progn (forward-line 1) (point)))
|
|
|
532 ;; get rid of any continuation lines
|
|
|
533 (while (and (looking-at "^[ \t].*\n") (< (point) header-end))
|
|
|
534 (replace-match ""))
|
|
|
535 )
|
|
|
536 ) ;; save-excursion
|
|
|
537 ) ;; let
|
|
|
538 )
|
|
|
539
|
|
|
540
|
|
|
541
|
|
|
542 (provide 'smtpmail)
|
|
|
543
|
|
|
544 ;; smtpmail.el ends here
|
