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| -rw-r--r-- | Mailman/Handlers/SMTPDirect.py | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/Mailman/Handlers/SMTPDirect.py b/Mailman/Handlers/SMTPDirect.py new file mode 100644 index 000000000..5e39faa67 --- /dev/null +++ b/Mailman/Handlers/SMTPDirect.py @@ -0,0 +1,67 @@ +# Copyright (C) 1998 by the Free Software Foundation, Inc. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License +# as published by the Free Software Foundation; either version 2 +# of the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + +"""Local SMTP direct drop-off. + +This module delivers messages via SMTP to a locally specified daemon. This +should be compatible with any modern SMTP server. It is expected that the MTA +handles all final delivery. We have to play tricks so that the list object +isn't locked while delivery occurs synchronously. + +""" + +import time +import socket +from Mailman import mm_cfg +from Mailman.pythonlib import smtplib + + + +def process(mlist, msg): + # I want to record how long the SMTP dialog takes because this will help + # diagnose whether we need to rewrite this module to relinquish the list + # lock or not. + t0 = time.time() + conn = smtplib.SMTP(mm_cfg.SMTPHOST, mm_cfg.SMTPPORT) + refused = {} + try: + try: + # make sure the connect happens, which won't be done by the + # constructor if SMTPHOST is false + refused = conn.sendmail(msg.GetSender(), msg.recips, str(msg)) + finally: + t1 = time.time() + mlist.LogMsg('smtp', 'smtp completed in %.3f seconds' % (t1-t0)) + conn.quit() + except smtplib.SMTPRecipientsRefused, e: + refused = e.recipients + mlist.LogMsg('smtp', 'All recipients refused') + # MTA not responding, or other socket problems, or any other kind of + # SMTPException. In that case, nothing got delivered + except (socket.error, smtplib.SMTPException), e: + mlist.LogMsg('smtp', 'Some other exception occurred:\n' + `e`) + # + # Go through all refused recipients and deal with them if possible + for recip, (code, smtpmsg) in refused.items(): + if code >= 500: + # It's a permanent failure for this recipient so register it. We + # don't save the list between each registration because we assume + # it happens around the whole message delivery sequence + mlist.RegisterBounce(recip, msg, saveifdirty=0) + # TBD: should we do anything with persistent transient failures, like + # queue them up and try to resend them? Should we log the smtp error + # messages, or do any other processing of failures? Lots of + # questions... |