[Mailman-Users] phantom subscription requests

2009-05-18 Thread David Newman
Mailman 2.1.12 on OpenBSD 4.5

Don't know if this is a coincidence, but ever since rebuilding a Mailman
server that crashed last week and restoring the lists from archives, the
site admin address has received a few dozen bogus subscription requests
to lists on that server.

This is odd, in that I'm site admin and have not sent any such requests.
From the little bit of spot checking I've done, the requests appear to
come mostly from machines in RIPE space in Europe.

Is anyone else seeing this? What measures, if any, can a site admin take
to block bogus subscription requests?

thanks

dn


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Re: [Mailman-Users] phantom subscription requests

2009-05-18 Thread Mark Sapiro
David Newman wrote:

Don't know if this is a coincidence, but ever since rebuilding a Mailman
server that crashed last week and restoring the lists from archives, the
site admin address has received a few dozen bogus subscription requests
to lists on that server.


These can result from spam to the LIST-subscribe and/or LIST-join
addresses. Check your MTA logs to see if that's where the requests are
coming from.


This is odd, in that I'm site admin and have not sent any such requests.
From the little bit of spot checking I've done, the requests appear to
come mostly from machines in RIPE space in Europe.

Is anyone else seeing this? What measures, if any, can a site admin take
to block bogus subscription requests?


Short of disabling the -subscribe and -join addresses, you can't stop
the requests, but you can use subscribe_policy to mitigate the impact.
If it is spam, requests won't be confirmed.

-- 
Mark Sapiro m...@msapiro.netThe highway is for gamblers,
San Francisco Bay Area, Californiabetter use your sense - B. Dylan

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