[Mailman-Users] Mailman and auto-responders?

Marc MERLIN marc_news at vasoftware.com
Sun Jan 27 05:33:48 CET 2002

On Thu, Jan 17, 2002 at 03:45:42PM -0800, Paul Thomas wrote:
> Howdy,
> Is Mailman vulnerable to mail-loops caused by auto-responders
> that are configured to look like an email sent by a person?

Autoresponders are not supposed to answer mails with a precedence of list or
bulk, and they are supposed to answer to the envelope sender.
That said, some happily ignore precedence, and will answer to the header
from, and the reply-to if there is one.

If you don't do reply-to munging (the default for many good reasons), you're
ok,  but if  you do  do reply-to  munging,  you run  the risk  of having  an
autoresponder create a loop with your list.

Microsoft is to operating systems & security ....
                                      .... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/   |   Finger marc_f at merlins.org for PGP key

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