[Mailman-Users] RE: Bounced e-mail/Mystery User

Michael Mendelson mmendelson at intowndenver.com
Mon Feb 25 19:06:35 CET 2002

FOUND A SOLUTION.  Thought I'd go ahead and post it for posterity.

The solution to both problems lies in the qmail setup, and communcations
between mailman and Qmail.

What I found (in subsequent testing) is that messages to local addresses
were delivered and others were not.  Further, there was no entry in the
qmail log for them.

By default, Mailman uses a module called "SMTPDirect" (which uses SMTP) to
communicate with the mail server.  For qmail, the Sendmail module needs to
be used.

The reason is that qmail only accepts smtp requests to send mail to local
addresses.  This is why only SOME addresses were working.  This is
configurable within qmail, but would expose your mail server to a security

Add this to mm_cfg.py:


End of this chapter.

> -----Original Message-----
> From: Michael Mendelson [mailto:mmendelson at intowndenver.com]
> Sent: Saturday, February 23, 2002 6:23 PM
> To: mailman-users at python.org
> Subject: Bounced e-mail/Mystery User
> I've been testing Mailman at my site, and so far I LOVE it.
> However, I'm working on one or possibly two problems.
> First, the "MYSTERY USER"
> One user has signed up but does not receive his confirmation
> notice.  I can send e-mails to him directly at the same address.
> I have tried this both on the list's "General page" and from the
> admin console.
> Second (possibly related) "NOT RECEIVING BOUNCED E-MAIL"
> As a list administrator I never receive bounced e-mails, even
> when I sign up a garbage address.  I have toyed with the Bounce
> Options, especially "Try to figure out error messages
> automatically?", with the same result.  Entries appear in the
> Bounced log, but I don't get the detail I need to figure out my
> first problem.
> All other features work great.  I need to sort out this
> problem(s) before really using the product.
> My mail server is qmail.
> Thanks, all!

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