[Mailman-Users] Odd replacement of the sender address

Michael Smith msmith13337 at gmail.com
Tue Feb 19 15:22:21 CET 2013


thanks Mark.

I applied the patch and both the incoming as well as the outgoing mail
addresses are correct according to the debug log. So does the problem lie
with postfix?


On 19 February 2013 06:16, Mark Sapiro <mark at msapiro.net> wrote:

> Michael Smith wrote:
> >
> >I have a strange problem using mailman 2.1.13: Every time, a mail is sent
> >to one of the lists, the real sender address is replaced by
> >somelocaluser at example.com (somelocaluser being a unix user on the server
> >and example.com being the domain). This is very inconvenient since some
> of
> >the addresses doesn't even exist. Interestingly only the address is
> >changed; the name is unaltered. For example "John Doe <
> john at thedoefamily.com>"
> >might become "John Doe <root at example.com>".
> I have been working a similar but not identical problem (From: header
> replaced with one containing Sender: or the envelope sender). See the
> thread at
> <http://mail.python.org/pipermail/mailman-users/2013-February/074709.html>
> for the start of this.
> I gave him the attached patch to Mailman/Handlers/SMTPDirect.py, which
> logs the content of the messages From: and Message-ID: headers upon
> entry to SMTPDirect.py and after delivery to the outgoing MTA. The
> From: is unchanged in these log messages, and the ultimate, erroneous
> From: has been added after (above in the message headers) the
> Received: header added by the outgoing MTA.
> Thus, it seems that the header must be munged or removed after initial
> SMTP delivery to the outgoing MTA. You might try the patch and see if
> the same appears true in your case.
> The instructions I provided with the patch (his MTA is Postfix) are:
> SMTPDirect.patch.txt is a patch you can apply to
> Mailman/Handlers/SMTPDirect.py via the command
> patch /path/to/Mailman/Handlers/SMTPDirect.py
> /path/to/SMTPDirect.patch.txt
> (all on one line). This adds two statements to log to Mailman's 'debug'
> log the values of each message's From: header and Message-ID: header
> upon entry and after sending the message. Apply this patch and restart
> Mailman and then look at Mailman's 'debug' log after a post.
> Then you can remove the patch via
> patch -R /path/to/Mailman/Handlers/SMTPDirect.py
> /path/to/SMTPDirect.patch.txt
> (again, all on one line) and restart Mailman. The information in the
> debug log will tell us whether the message had a good From: upon entry
> to SMTPDirect and whether it had a good From: upon delivery to Postfix.
> --
> Mark Sapiro <mark at msapiro.net>        The highway is for gamblers,
> San Francisco Bay Area, California    better use your sense - B. Dylan

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