1 ;;; smtpmail.el --- simple SMTP protocol (RFC 821) for sending mail
3 ;; Copyright (C) 1995, 1996, 2001, 2002, 2003, 2004, 2005,
4 ;; 2006 Free Software Foundation, Inc.
6 ;; Author: Tomoji Kagatani <kagatani@rbc.ncl.omron.co.jp>
7 ;; Maintainer: Simon Josefsson <simon@josefsson.org>
8 ;; w32 Maintainer: Brian D. Carlstrom <bdc@ai.mit.edu>
9 ;; ESMTP support: Simon Leinen <simon@switch.ch>
10 ;; Hacked by Mike Taylor, 11th October 1999 to add support for
11 ;; automatically appending a domain to RCPT TO: addresses.
12 ;; AUTH=LOGIN support: Stephen Cranefield <scranefield@infoscience.otago.ac.nz>
15 ;; This file is part of GNU Emacs.
17 ;; GNU Emacs is free software; you can redistribute it and/or modify
18 ;; it under the terms of the GNU General Public License as published by
19 ;; the Free Software Foundation; either version 2, or (at your option)
22 ;; GNU Emacs is distributed in the hope that it will be useful,
23 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
24 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
25 ;; GNU General Public License for more details.
27 ;; You should have received a copy of the GNU General Public License
28 ;; along with GNU Emacs; see the file COPYING. If not, write to the
29 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
30 ;; Boston, MA 02110-1301, USA.
34 ;; Send Mail to smtp host from smtpmail temp buffer.
36 ;; Please add these lines in your .emacs(_emacs) or use customize.
38 ;;(setq send-mail-function 'smtpmail-send-it) ; if you use `mail'
39 ;;(setq message-send-mail-function 'smtpmail-send-it) ; if you use message/Gnus
40 ;;(setq smtpmail-default-smtp-server "YOUR SMTP HOST")
41 ;;(setq smtpmail-local-domain "YOUR DOMAIN NAME")
42 ;;(setq smtpmail-sendto-domain "YOUR DOMAIN NAME")
43 ;;(setq smtpmail-debug-info t) ; only to debug problems
44 ;;(setq smtpmail-auth-credentials ; or use ~/.authinfo
45 ;; '(("YOUR SMTP HOST" 25 "username" "password")))
46 ;;(setq smtpmail-starttls-credentials
47 ;; '(("YOUR SMTP HOST" 25 "~/.my_smtp_tls.key" "~/.my_smtp_tls.cert")))
48 ;; Where the 25 equals the value of `smtpmail-smtp-service', it can be an
49 ;; integer or a string, just as long as they match (eq).
51 ;; To queue mail, set smtpmail-queue-mail to t and use
52 ;; smtpmail-send-queued-mail to send.
54 ;; Modified by Stephen Cranefield <scranefield@infoscience.otago.ac.nz>,
55 ;; 22/6/99, to support SMTP Authentication by the AUTH=LOGIN mechanism.
56 ;; See http://help.netscape.com/products/server/messaging/3x/info/smtpauth.html
57 ;; Rewritten by Simon Josefsson to use same credential variable as AUTH
60 ;; Modified by Simon Josefsson <jas@pdc.kth.se>, 22/2/99, to support SMTP
61 ;; Authentication by the AUTH mechanism.
62 ;; See http://www.ietf.org/rfc/rfc2554.txt
64 ;; Modified by Simon Josefsson <simon@josefsson.org>, 2000-10-07, to support
65 ;; STARTTLS. Requires external program
66 ;; ftp://ftp.opaopa.org/pub/elisp/starttls-*.tar.gz.
67 ;; See http://www.ietf.org/rfc/rfc2246.txt, http://www.ietf.org/rfc/rfc2487.txt
72 (autoload 'starttls-open-stream "starttls")
73 (autoload 'starttls-negotiate "starttls")
74 (autoload 'mail-strip-quoted-names "mail-utils")
75 (autoload 'message-make-date "message")
76 (autoload 'message-make-message-id "message")
77 (autoload 'rfc2104-hash "rfc2104")
78 (autoload 'netrc-parse "netrc")
79 (autoload 'netrc-machine "netrc")
80 (autoload 'netrc-get "netrc")
83 (defgroup smtpmail nil
84 "SMTP protocol for sending mail."
88 (defcustom smtpmail-default-smtp-server nil
89 "*Specify default SMTP server.
90 This only has effect if you specify it before loading the smtpmail library."
91 :type '(choice (const nil) string)
94 (defcustom smtpmail-smtp-server
95 (or (getenv "SMTPSERVER") smtpmail-default-smtp-server)
96 "*The name of the host running SMTP server."
97 :type '(choice (const nil) string)
100 (defcustom smtpmail-smtp-service 25
101 "*SMTP service port number.
102 The default value would be \"smtp\" or 25 ."
103 :type '(choice (integer :tag "Port") (string :tag "Service"))
106 (defcustom smtpmail-local-domain nil
107 "*Local domain name without a host name.
108 If the function (system-name) returns the full internet address,
109 don't define this value."
110 :type '(choice (const nil) string)
113 (defcustom smtpmail-sendto-domain nil
114 "*Local domain name without a host name.
115 This is appended (with an @-sign) to any specified recipients which do
116 not include an @-sign, so that each RCPT TO address is fully qualified.
117 \(Some configurations of sendmail require this.)
119 Don't bother to set this unless you have get an error like:
120 Sending failed; SMTP protocol error
121 when sending mail, and the *trace of SMTP session to <somewhere>*
122 buffer includes an exchange like:
124 501 <someone>: recipient address must contain a domain
126 :type '(choice (const nil) string)
129 (defcustom smtpmail-debug-info nil
130 "Whether to print info in buffer *trace of SMTP session to <somewhere>*.
131 See also `smtpmail-debug-verb' which determines if the SMTP protocol should
136 (defcustom smtpmail-debug-verb nil
137 "Whether this library sends the SMTP VERB command or not.
138 The commands enables verbose information from the SMTP server."
142 (defcustom smtpmail-code-conv-from nil ;; *junet*
143 "*smtpmail code convert from this code to *internal*..for tiny-mime.."
147 (defcustom smtpmail-queue-mail nil
148 "*Specify if mail is queued (if t) or sent immediately (if nil).
149 If queued, it is stored in the directory `smtpmail-queue-dir'
150 and sent with `smtpmail-send-queued-mail'."
154 (defcustom smtpmail-queue-dir "~/Mail/queued-mail/"
155 "*Directory where `smtpmail.el' stores queued mail."
159 (defcustom smtpmail-auth-credentials "~/.authinfo"
160 "Specify username and password for servers, directly or via .netrc file.
161 This variable can either be a filename pointing to a file in netrc(5)
162 format, or list of four-element lists that contain, in order,
163 `servername' (a string), `port' (an integer), `user' (a string) and
164 `password' (a string, or nil to query the user when needed). If you
165 need to enter a `realm' too, add it to the user string, so that it
166 looks like `user@realm'."
168 (repeat (list (string :tag "Server")
169 (integer :tag "Port")
170 (string :tag "Username")
171 (choice (const :tag "Query when needed" nil)
172 (string :tag "Password")))))
176 (defcustom smtpmail-starttls-credentials '(("" 25 "" ""))
177 "Specify STARTTLS keys and certificates for servers.
178 This is a list of four-element list with `servername' (a string),
179 `port' (an integer), `key' (a filename) and `certificate' (a
181 If you do not have a certificate/key pair, leave the `key' and
182 `certificate' fields as `nil'. A key/certificate pair is only
183 needed if you want to use X.509 client authenticated
185 :type '(repeat (list (string :tag "Server")
186 (integer :tag "Port")
188 (file :tag "Certificate")))
192 (defcustom smtpmail-warn-about-unknown-extensions nil
193 "*If set, print warnings about unknown SMTP extensions.
194 This is mainly useful for development purposes, to learn about
195 new SMTP extensions that might be useful to support."
200 (defvar smtpmail-queue-index-file "index"
201 "File name of queued mail index,
202 This is relative to `smtpmail-queue-dir'.")
204 (defvar smtpmail-address-buffer)
205 (defvar smtpmail-recipient-address-list)
207 (defvar smtpmail-queue-counter 0)
209 ;; Buffer-local variable.
210 (defvar smtpmail-read-point)
212 (defvar smtpmail-queue-index (concat smtpmail-queue-dir
213 smtpmail-queue-index-file))
215 (defconst smtpmail-auth-supported '(cram-md5 plain login)
216 "List of supported SMTP AUTH mechanisms.")
222 (defvar smtpmail-mail-address nil
223 "Value to use for envelope-from address for mail from ambient buffer.")
226 (defun smtpmail-send-it ()
227 (let ((errbuf (if mail-interactive
228 (generate-new-buffer " smtpmail errors")
230 (tembuf (generate-new-buffer " smtpmail temp"))
231 (case-fold-search nil)
233 (mailbuf (current-buffer))
234 ;; Examine this variable now, so that
235 ;; local binding in the mail buffer will take effect.
236 (smtpmail-mail-address
237 (or (and mail-specify-envelope-from (mail-envelope-from))
239 (smtpmail-code-conv-from
240 (if enable-multibyte-characters
241 (let ((sendmail-coding-system smtpmail-code-conv-from))
242 (select-message-coding-system)))))
247 (insert-buffer-substring mailbuf)
248 (goto-char (point-max))
249 ;; require one newline at the end.
250 (or (= (preceding-char) ?\n)
252 ;; Change header-delimiter to be what sendmail expects.
253 (mail-sendmail-undelimit-header)
254 (setq delimline (point-marker))
255 ;; (sendmail-synch-aliases)
257 (expand-mail-aliases (point-min) delimline))
258 (goto-char (point-min))
259 ;; ignore any blank lines in the header
260 (while (and (re-search-forward "\n\n\n*" delimline t)
261 (< (point) delimline))
262 (replace-match "\n"))
263 (let ((case-fold-search t))
264 ;; We used to process Resent-... headers here,
265 ;; but it was not done properly, and the job
266 ;; is done correctly in smtpmail-deduce-address-list.
267 ;; Don't send out a blank subject line
268 (goto-char (point-min))
269 (if (re-search-forward "^Subject:\\([ \t]*\n\\)+\\b" delimline t)
271 ;; This one matches a Subject just before the header delimiter.
272 (if (and (re-search-forward "^Subject:\\([ \t]*\n\\)+" delimline t)
273 (= (match-end 0) delimline))
275 ;; Put the "From:" field in unless for some odd reason
276 ;; they put one in themselves.
277 (goto-char (point-min))
278 (if (not (re-search-forward "^From:" delimline t))
279 (let* ((login smtpmail-mail-address)
280 (fullname (user-full-name)))
281 (cond ((eq mail-from-style 'angles)
282 (insert "From: " fullname)
283 (let ((fullname-start (+ (point-min) 6))
284 (fullname-end (point-marker)))
285 (goto-char fullname-start)
286 ;; Look for a character that cannot appear unquoted
287 ;; according to RFC 822.
288 (if (re-search-forward "[^- !#-'*+/-9=?A-Z^-~]"
291 ;; Quote fullname, escaping specials.
292 (goto-char fullname-start)
294 (while (re-search-forward "[\"\\]"
296 (replace-match "\\\\\\&" t))
298 (insert " <" login ">\n"))
299 ((eq mail-from-style 'parens)
300 (insert "From: " login " (")
301 (let ((fullname-start (point)))
303 (let ((fullname-end (point-marker)))
304 (goto-char fullname-start)
305 ;; RFC 822 says \ and nonmatching parentheses
306 ;; must be escaped in comments.
307 ;; Escape every instance of ()\ ...
308 (while (re-search-forward "[()\\]" fullname-end 1)
309 (replace-match "\\\\\\&" t))
310 ;; ... then undo escaping of matching parentheses,
311 ;; including matching nested parentheses.
312 (goto-char fullname-start)
313 (while (re-search-forward
314 "\\(\\=\\|[^\\]\\(\\\\\\\\\\)*\\)\\\\(\\(\\([^\\]\\|\\\\\\\\\\)*\\)\\\\)"
316 (replace-match "\\1(\\3)" t)
317 (goto-char fullname-start))))
319 ((null mail-from-style)
320 (insert "From: " login "\n")))))
321 ;; Insert a `Message-Id:' field if there isn't one yet.
322 (goto-char (point-min))
323 (unless (re-search-forward "^Message-Id:" delimline t)
324 (insert "Message-Id: " (message-make-message-id) "\n"))
325 ;; Insert a `Date:' field if there isn't one yet.
326 (goto-char (point-min))
327 (unless (re-search-forward "^Date:" delimline t)
328 (insert "Date: " (message-make-date) "\n"))
329 ;; Insert an extra newline if we need it to work around
330 ;; Sun's bug that swallows newlines.
331 (goto-char (1+ delimline))
332 (if (eval mail-mailer-swallows-blank-line)
334 ;; Find and handle any FCC fields.
335 (goto-char (point-min))
336 (if (re-search-forward "^FCC:" delimline t)
337 (mail-do-fcc delimline))
339 (with-current-buffer errbuf
344 (setq smtpmail-address-buffer (generate-new-buffer "*smtp-mail*"))
345 (setq smtpmail-recipient-address-list
346 (smtpmail-deduce-address-list tembuf (point-min) delimline))
347 (kill-buffer smtpmail-address-buffer)
349 (smtpmail-do-bcc delimline)
351 (if (not smtpmail-queue-mail)
352 (if (not (null smtpmail-recipient-address-list))
353 (if (not (smtpmail-via-smtp
354 smtpmail-recipient-address-list tembuf))
355 (error "Sending failed; SMTP protocol error"))
356 (error "Sending failed; no recipients"))
360 (format-time-string "%Y-%m-%d_%H:%M:%S")
361 (setq smtpmail-queue-counter
362 (1+ smtpmail-queue-counter)))
364 (file-data (convert-standard-filename file-data))
365 (file-elisp (concat file-data ".el"))
366 (buffer-data (create-file-buffer file-data))
367 (buffer-elisp (create-file-buffer file-elisp))
368 (buffer-scratch "*queue-mail*"))
369 (unless (file-exists-p smtpmail-queue-dir)
370 (make-directory smtpmail-queue-dir t))
371 (with-current-buffer buffer-data
373 (insert-buffer-substring tembuf)
374 (write-file file-data)
375 (set-buffer buffer-elisp)
378 "(setq smtpmail-recipient-address-list '"
379 (prin1-to-string smtpmail-recipient-address-list)
381 (write-file file-elisp)
382 (set-buffer (generate-new-buffer buffer-scratch))
383 (insert (concat file-data "\n"))
384 (append-to-file (point-min)
386 smtpmail-queue-index)
388 (kill-buffer buffer-scratch)
389 (kill-buffer buffer-data)
390 (kill-buffer buffer-elisp))))
393 (kill-buffer errbuf)))))
396 (defun smtpmail-send-queued-mail ()
397 "Send mail that was queued as a result of setting `smtpmail-queue-mail'."
400 ;;; Get index, get first mail, send it, update index, get second
401 ;;; mail, send it, etc...
403 (insert-file-contents smtpmail-queue-index)
404 (goto-char (point-min))
406 (setq file-msg (buffer-substring (point) (line-end-position)))
408 ;; Insert the message literally: it is already encoded as per
409 ;; the MIME headers, and code conversions might guess the
412 (let ((coding-system-for-read 'no-conversion))
413 (insert-file-contents file-msg))
414 (let ((smtpmail-mail-address
415 (or (and mail-specify-envelope-from (mail-envelope-from))
417 (if (not (null smtpmail-recipient-address-list))
418 (if (not (smtpmail-via-smtp smtpmail-recipient-address-list
420 (error "Sending failed; SMTP protocol error"))
421 (error "Sending failed; no recipients"))))
422 (delete-file file-msg)
423 (delete-file (concat file-msg ".el"))
424 (delete-region (point-at-bol) (point-at-bol 2)))
425 (write-region (point-min) (point-max) smtpmail-queue-index))))
427 ;(defun smtpmail-via-smtp (host,port,sender,destination,smtpmail-text-buffer)
429 (defun smtpmail-fqdn ()
430 (if smtpmail-local-domain
431 (concat (system-name) "." smtpmail-local-domain)
434 (defsubst smtpmail-cred-server (cred)
437 (defsubst smtpmail-cred-port (cred)
440 (defsubst smtpmail-cred-key (cred)
443 (defsubst smtpmail-cred-user (cred)
446 (defsubst smtpmail-cred-cert (cred)
449 (defsubst smtpmail-cred-passwd (cred)
452 (defun smtpmail-find-credentials (cred server port)
455 (while (setq el (pop l))
456 (when (and (equal server (smtpmail-cred-server el))
457 (equal port (smtpmail-cred-port el)))
458 (throw 'done el))))))
460 (defun smtpmail-maybe-append-domain (recipient)
461 (if (or (not smtpmail-sendto-domain)
462 (string-match "@" recipient))
464 (concat recipient "@" smtpmail-sendto-domain)))
466 (defun smtpmail-intersection (list1 list2)
469 (when (memq el2 list1)
473 (defvar starttls-extra-args)
474 (defvar starttls-extra-arguments)
476 (defun smtpmail-open-stream (process-buffer host port)
477 (let ((cred (smtpmail-find-credentials
478 smtpmail-starttls-credentials host port)))
479 (if (null (and cred (condition-case ()
482 (call-process (if starttls-use-gnutls
483 starttls-gnutls-program
487 (open-network-stream "SMTP" process-buffer host port)
488 (let* ((cred-key (smtpmail-cred-key cred))
489 (cred-cert (smtpmail-cred-cert cred))
493 (when (and (stringp cred-key) (stringp cred-cert)
495 (setq cred-key (expand-file-name cred-key)))
497 (setq cred-cert (expand-file-name cred-cert))))
498 (list "--key-file" cred-key "--cert-file" cred-cert))))
499 (starttls-extra-arguments
501 starttls-extra-arguments
502 (when (and (stringp cred-key) (stringp cred-cert)
504 (setq cred-key (expand-file-name cred-key)))
506 (setq cred-cert (expand-file-name cred-cert))))
507 (list "--x509keyfile" cred-key "--x509certfile" cred-cert)))))
508 (starttls-open-stream "SMTP" process-buffer host port)))))
510 (defun smtpmail-try-auth-methods (process supported-extensions host port)
511 (let* ((mechs (cdr-safe (assoc 'auth supported-extensions)))
512 (mech (car (smtpmail-intersection smtpmail-auth-supported mechs)))
513 (cred (if (stringp smtpmail-auth-credentials)
514 (let* ((netrc (netrc-parse smtpmail-auth-credentials))
515 (port-name (format "%s" (or port "smtp")))
516 (hostentry (netrc-machine netrc host port-name
520 (netrc-get hostentry "login")
521 (netrc-get hostentry "password"))))
522 (smtpmail-find-credentials
523 smtpmail-auth-credentials host port)))
525 (or (smtpmail-cred-passwd cred)
527 (format "SMTP password for %s:%s: "
528 (smtpmail-cred-server cred)
529 (smtpmail-cred-port cred))))))
531 (when (and cred mech)
534 (smtpmail-send-command process (upcase (format "AUTH %s" mech)))
535 (if (or (null (car (setq ret (smtpmail-read-response process))))
536 (not (integerp (car ret)))
539 (when (eq (car ret) 334)
540 (let* ((challenge (substring (cadr ret) 4))
541 (decoded (base64-decode-string challenge))
542 (hash (rfc2104-hash 'md5 64 16 passwd decoded))
543 (response (concat (smtpmail-cred-user cred) " " hash))
544 (encoded (base64-encode-string response t)))
545 (smtpmail-send-command process (format "%s" encoded))
546 (if (or (null (car (setq ret (smtpmail-read-response process))))
547 (not (integerp (car ret)))
549 (throw 'done nil)))))
551 (smtpmail-send-command process "AUTH LOGIN")
552 (if (or (null (car (setq ret (smtpmail-read-response process))))
553 (not (integerp (car ret)))
556 (smtpmail-send-command
557 process (base64-encode-string (smtpmail-cred-user cred) t))
558 (if (or (null (car (setq ret (smtpmail-read-response process))))
559 (not (integerp (car ret)))
562 (smtpmail-send-command process (base64-encode-string passwd t))
563 (if (or (null (car (setq ret (smtpmail-read-response process))))
564 (not (integerp (car ret)))
568 ;; We used to send an empty initial request, and wait for an
569 ;; empty response, and then send the password, but this
570 ;; violate a SHOULD in RFC 2222 paragraph 5.1. Note that this
571 ;; is not sent if the server did not advertise AUTH PLAIN in
572 ;; the EHLO response. See RFC 2554 for more info.
573 (smtpmail-send-command process
574 (concat "AUTH PLAIN "
575 (base64-encode-string
577 (smtpmail-cred-user cred)
580 (if (or (null (car (setq ret (smtpmail-read-response process))))
581 (not (integerp (car ret)))
582 (not (equal (car ret) 235)))
586 (error "Mechanism %s not implemented" mech)))
587 ;; Remember the password.
588 (when (and (not (stringp smtpmail-auth-credentials))
589 (null (smtpmail-cred-passwd cred)))
590 (setcar (cdr (cdr (cdr cred))) passwd)))))
592 (defun smtpmail-via-smtp (recipient smtpmail-text-buffer)
594 (host (or smtpmail-smtp-server
595 (error "`smtpmail-smtp-server' not defined")))
596 (port smtpmail-smtp-service)
597 ;; smtpmail-mail-address should be set to the appropriate
598 ;; buffer-local value by the caller, but in case not:
599 (envelope-from (or smtpmail-mail-address
600 (and mail-specify-envelope-from
601 (mail-envelope-from))
606 (supported-extensions '()))
609 ;; get or create the trace buffer
611 (get-buffer-create (format "*trace of SMTP session to %s*" host)))
613 ;; clear the trace buffer of old output
614 (with-current-buffer process-buffer
615 (setq buffer-undo-list t)
618 ;; open the connection to the server
619 (setq process (smtpmail-open-stream process-buffer host port))
620 (and (null process) (throw 'done nil))
622 ;; set the send-filter
623 (set-process-filter process 'smtpmail-process-filter)
625 (with-current-buffer process-buffer
626 (set-buffer-process-coding-system 'raw-text-unix 'raw-text-unix)
627 (make-local-variable 'smtpmail-read-point)
628 (setq smtpmail-read-point (point-min))
631 (if (or (null (car (setq greeting (smtpmail-read-response process))))
632 (not (integerp (car greeting)))
633 (>= (car greeting) 400))
641 (smtpmail-send-command process (format "EHLO %s" (smtpmail-fqdn)))
643 (if (or (null (car (setq response-code
644 (smtpmail-read-response process))))
645 (not (integerp (car response-code)))
646 (>= (car response-code) 400))
649 (smtpmail-send-command
650 process (format "HELO %s" (smtpmail-fqdn)))
652 (if (or (null (car (setq response-code
653 (smtpmail-read-response process))))
654 (not (integerp (car response-code)))
655 (>= (car response-code) 400))
657 (dolist (line (cdr (cdr response-code)))
658 (let ((name (mapcar (lambda (s) (intern (downcase s)))
659 (split-string (substring line 4) "[ ]"))))
660 (and (eq (length name) 1)
661 (setq name (car name)))
663 (cond ((memq (if (consp name) (car name) name)
664 '(verb xvrb 8bitmime onex xone
668 auth=login auth starttls))
669 (setq supported-extensions
670 (cons name supported-extensions)))
671 (smtpmail-warn-about-unknown-extensions
672 (message "Unknown extension %s" name)))))))
675 (smtpmail-find-credentials smtpmail-starttls-credentials host port)
676 (member 'starttls supported-extensions)
677 (numberp (process-id process)))
679 (smtpmail-send-command process (format "STARTTLS"))
680 (if (or (null (car (setq response-code (smtpmail-read-response process))))
681 (not (integerp (car response-code)))
682 (>= (car response-code) 400))
684 (starttls-negotiate process)
685 (setq do-starttls nil))
686 (setq do-ehlo nil))))
688 (smtpmail-try-auth-methods process supported-extensions host port)
690 (if (or (member 'onex supported-extensions)
691 (member 'xone supported-extensions))
693 (smtpmail-send-command process (format "ONEX"))
694 (if (or (null (car (setq response-code (smtpmail-read-response process))))
695 (not (integerp (car response-code)))
696 (>= (car response-code) 400))
699 (if (and smtpmail-debug-verb
700 (or (member 'verb supported-extensions)
701 (member 'xvrb supported-extensions)))
703 (smtpmail-send-command process (format "VERB"))
704 (if (or (null (car (setq response-code (smtpmail-read-response process))))
705 (not (integerp (car response-code)))
706 (>= (car response-code) 400))
709 (if (member 'xusr supported-extensions)
711 (smtpmail-send-command process (format "XUSR"))
712 (if (or (null (car (setq response-code (smtpmail-read-response process))))
713 (not (integerp (car response-code)))
714 (>= (car response-code) 400))
717 ;; MAIL FROM:<sender>
719 (if (or (member 'size supported-extensions)
720 (assoc 'size supported-extensions))
722 (with-current-buffer smtpmail-text-buffer
724 (+ (- (point-max) (point-min))
725 ;; Add one byte for each change-of-line
726 ;; because of CR-LF representation:
727 (count-lines (point-min) (point-max)))))
730 (if (member '8bitmime supported-extensions)
732 ;; Code should be added here that transforms
733 ;; the contents of the message buffer into
734 ;; something the receiving SMTP can handle.
735 ;; For a receiver that supports 8BITMIME, this
736 ;; may mean converting BINARY to BASE64, or
737 ;; adding Content-Transfer-Encoding and the
738 ;; other MIME headers. The code should also
739 ;; return an indication of what encoding the
740 ;; message buffer is now, i.e. ASCII or
746 ; (smtpmail-send-command process (format "MAIL FROM:%s@%s" (user-login-name) (smtpmail-fqdn)))
747 (smtpmail-send-command process (format "MAIL FROM:<%s>%s%s"
752 (if (or (null (car (setq response-code (smtpmail-read-response process))))
753 (not (integerp (car response-code)))
754 (>= (car response-code) 400))
758 ;; RCPT TO:<recipient>
760 (while (not (null (nth n recipient)))
761 (smtpmail-send-command process (format "RCPT TO:<%s>" (smtpmail-maybe-append-domain (nth n recipient))))
764 (setq response-code (smtpmail-read-response process))
765 (if (or (null (car response-code))
766 (not (integerp (car response-code)))
767 (>= (car response-code) 400))
773 (smtpmail-send-command process "DATA")
775 (if (or (null (car (setq response-code (smtpmail-read-response process))))
776 (not (integerp (car response-code)))
777 (>= (car response-code) 400))
782 (smtpmail-send-data process smtpmail-text-buffer)
785 (smtpmail-send-command process ".")
787 (if (or (null (car (setq response-code (smtpmail-read-response process))))
788 (not (integerp (car response-code)))
789 (>= (car response-code) 400))
794 ; (smtpmail-send-command process "QUIT")
795 ; (and (null (car (smtpmail-read-response process)))
799 (with-current-buffer (process-buffer process)
800 (smtpmail-send-command process "QUIT")
801 (smtpmail-read-response process)
803 ; (if (or (null (car (setq response-code (smtpmail-read-response process))))
804 ; (not (integerp (car response-code)))
805 ; (>= (car response-code) 400))
808 (delete-process process)
809 (unless smtpmail-debug-info
810 (kill-buffer process-buffer)))))))
813 (defun smtpmail-process-filter (process output)
814 (with-current-buffer (process-buffer process)
815 (goto-char (point-max))
818 (defun smtpmail-read-response (process)
819 (let ((case-fold-search nil)
820 (response-strings nil)
821 (response-continue t)
822 (return-value '(nil ()))
825 (while response-continue
826 (goto-char smtpmail-read-point)
827 (while (not (search-forward "\r\n" nil t))
828 (unless (memq (process-status process) '(open run))
830 (accept-process-output process)
831 (goto-char smtpmail-read-point))
833 (setq match-end (point))
834 (setq response-strings
835 (cons (buffer-substring smtpmail-read-point (- match-end 2))
838 (goto-char smtpmail-read-point)
839 (if (looking-at "[0-9]+ ")
840 (let ((begin (match-beginning 0))
842 (if smtpmail-debug-info
843 (message "%s" (car response-strings)))
845 (setq smtpmail-read-point match-end)
847 ;; ignore lines that start with "0"
848 (if (looking-at "0[0-9]+ ")
850 (setq response-continue nil)
852 (cons (string-to-number
853 (buffer-substring begin end))
854 (nreverse response-strings)))))
856 (if (looking-at "[0-9]+-")
857 (progn (if smtpmail-debug-info
858 (message "%s" (car response-strings)))
859 (setq smtpmail-read-point match-end)
860 (setq response-continue t))
862 (setq smtpmail-read-point match-end)
863 (setq response-continue nil)
865 (cons nil (nreverse response-strings)))))))
866 (setq smtpmail-read-point match-end))
870 (defun smtpmail-send-command (process command)
871 (goto-char (point-max))
872 (if (= (aref command 0) ?P)
873 (insert "PASS <omitted>\r\n")
874 (insert command "\r\n"))
875 (setq smtpmail-read-point (point))
876 (process-send-string process command)
877 (process-send-string process "\r\n"))
879 (defun smtpmail-send-data-1 (process data)
880 (goto-char (point-max))
882 (if (and (multibyte-string-p data)
883 smtpmail-code-conv-from)
884 (setq data (string-as-multibyte
885 (encode-coding-string data smtpmail-code-conv-from))))
887 (if smtpmail-debug-info
888 (insert data "\r\n"))
890 (setq smtpmail-read-point (point))
891 ;; Escape "." at start of a line
892 (if (eq (string-to-char data) ?.)
893 (process-send-string process "."))
894 (process-send-string process data)
895 (process-send-string process "\r\n")
898 (defun smtpmail-send-data (process buffer)
899 (let ((data-continue t) sending-data)
900 (with-current-buffer buffer
901 (goto-char (point-min)))
903 (with-current-buffer buffer
904 (setq sending-data (buffer-substring (point-at-bol) (point-at-eol)))
906 (setq data-continue (not (eobp))))
907 (smtpmail-send-data-1 process sending-data))))
909 (defun smtpmail-deduce-address-list (smtpmail-text-buffer header-start header-end)
910 "Get address list suitable for smtp RCPT TO: <address>."
912 (with-current-buffer smtpmail-address-buffer
915 ((case-fold-search t)
916 (simple-address-list "")
920 (insert-buffer-substring smtpmail-text-buffer header-start header-end)
921 (goto-char (point-min))
922 ;; RESENT-* fields should stop processing of regular fields.
925 (if (re-search-forward "^Resent-\\(to\\|cc\\|bcc\\):"
927 "^Resent-\\(to\\|cc\\|bcc\\):"
928 "^\\(To:\\|Cc:\\|Bcc:\\)")))
930 (while (re-search-forward addr-regexp header-end t)
932 (setq this-line (match-beginning 0))
934 ;; get any continuation lines
935 (while (and (looking-at "^[ \t]+") (< (point) header-end))
937 (setq this-line-end (point-marker))
938 (setq simple-address-list
939 (concat simple-address-list " "
940 (mail-strip-quoted-names (buffer-substring this-line this-line-end))))
943 (insert " " simple-address-list "\n")
944 (subst-char-in-region (point-min) (point-max) 10 ? t);; newline --> blank
945 (subst-char-in-region (point-min) (point-max) ?, ? t);; comma --> blank
946 (subst-char-in-region (point-min) (point-max) 9 ? t);; tab --> blank
948 (goto-char (point-min))
949 ;; tidyness in case hook is not robust when it looks at this
950 (while (re-search-forward "[ \t]+" header-end t) (replace-match " "))
952 (goto-char (point-min))
953 (let (recipient-address-list)
954 (while (re-search-forward " \\([^ ]+\\) " (point-max) t)
956 (setq recipient-address-list (cons (buffer-substring (match-beginning 1) (match-end 1))
957 recipient-address-list))
959 (setq smtpmail-recipient-address-list recipient-address-list))
967 (defun smtpmail-do-bcc (header-end)
968 "Delete [Resent-]BCC: and their continuation lines from the header area.
969 There may be multiple BCC: lines, and each may have arbitrarily
970 many continuation lines."
971 (let ((case-fold-search t))
973 (goto-char (point-min))
974 ;; iterate over all BCC: lines
975 (while (re-search-forward "^\\(RESENT-\\)?BCC:" header-end t)
976 (delete-region (match-beginning 0)
977 (progn (forward-line 1) (point)))
978 ;; get rid of any continuation lines
979 (while (and (looking-at "^[ \t].*\n") (< (point) header-end))
980 (replace-match ""))))))
985 ;;; arch-tag: a76992df-6d71-43b7-9e72-4bacc6c05466
986 ;;; smtpmail.el ends here