[Mailman-Users] Filtering out " Out of the Office " replies
brad at stop.mail-abuse.org
Mon Dec 27 19:20:26 CET 2004
At 5:38 PM +0000 2004-12-27, demo wrote:
> How can I filter out *any* " Out of the Office " automated replies to any
> lists natively in Mailman?
Mailman already catches a lot of these. The problem comes from
the ones it doesn't catch. For those, you'd either need to add more
Python code to Mailman to handle them, or add a pre-processor of some
sort (presumably written in another language).
The real danger comes from two people having bad out-of-office
reply systems, both of which do a "reply-to-all" for every incoming
message, and don't do rate limiting, etc.... Each sends their
out-of-office reply back to the list, and when that gets to the other
one it sends another back, etc....
Nice little mail loop which can *bury* your mail server.
> Strikes me a simple word filter would be fine, " Out of the Office " etc to
> be listed with all the other profanities.
Not really. If you did a simple word filter like this, then you
couldn't talk about it, as we are doing. Otherwise, talking about
the filter would get caught by the same filter you're talking about.
Moreover, it would be difficult to handle all the permutations
and combinations of all the various different ways you can say the
I've been quite frustrated about this myself. I've un-subbed
several people to this list because of their auto-responder systems.
I'll continue doing what I can to protect the list from this sort of
abuse in the future.
However, I'm not a programmer, so I don't have the ability to add
code to the system to deal with this problem in a way that is better
than what is already present in Mailman.
If you can write code to do that, I'm sure we'd all appreciate
seeing your contribution.
Brad Knowles, <brad at stop.mail-abuse.org>
"Those who would give up essential Liberty, to purchase a little
temporary Safety, deserve neither Liberty nor Safety."
-- Benjamin Franklin (1706-1790), reply of the Pennsylvania
Assembly to the Governor, November 11, 1755
SAGE member since 1995. See <http://www.sage.org/> for more info.
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