From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Marco Maggi Newsgroups: gmane.emacs.bugs Subject: bug#26307: 25.1; smtpmail hard-coded auth mechanism order does not allow coping with misbehaving servers Date: Thu, 30 Mar 2017 08:54:33 +0200 Message-ID: <8737dvdzkm.fsf@poste.it> Reply-To: marco.maggi-ipsu@poste.it NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1490856926 6767 195.159.176.226 (30 Mar 2017 06:55:26 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Thu, 30 Mar 2017 06:55:26 +0000 (UTC) To: 26307@debbugs.gnu.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Thu Mar 30 08:55:20 2017 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1ctTzD-0008R4-PJ for geb-bug-gnu-emacs@m.gmane.org; Thu, 30 Mar 2017 08:55:11 +0200 Original-Received: from localhost ([::1]:33995 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ctTzF-0005Fc-1p for geb-bug-gnu-emacs@m.gmane.org; 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Thu, 30 Mar 2017 08:54:01 +0200 Original-Original-Sender: marco.maggi-ipsu@poste.it X-Loop: marco@maggi.it.invalid X-Mailer: GNU Emacs Original-Lines: 27 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6.x X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: "bug-gnu-emacs" Xref: news.gmane.org gmane.emacs.bugs:131082 Archived-At: In GNU Emacs 25.1.1 (x86_64-slackware-linux-gnu, GTK+ Version 2.24.30) the library "smtpmail.el" contains the hard-coded list of authentication mechanisms to try in sequence: (defconst smtpmail-auth-supported '(cram-md5 plain login) "List of supported SMTP AUTH mechanisms. The list is in preference order.") it would be useful to have a public API mechanism to change such order in case the server misbehaves when using the cram-m5 method. I am customer of a mail service using a server that advertises to support the cram-md5, plain and login methods but then when trying cram-md5 the authentication fails; the login method succeeds. Just changing the above code to: (defconst smtpmail-auth-supported '(login cram-md5 plain) and recompiling fixes my problems. It is hard to contact the service administrators and having them fix the problem, so a workaround is useful. TIA -- Marco Maggi