Figure out how Mailman handles an email not in the membership.

[myles]

The issue is with + email address (i.e. alex+gtalug-talk@example.org). Where Alex subscribes to the talk@gtalug.org mailing list with alex+gtalug-talk@example.org to receive the email messages, but then replies using alex@example.org. Mailman will then ask to approve their main email then it puts the email somewhere.

The issue I'm trying to figure out is in the scenario where an email address get hijacked and starts sending mail to the list. How can we modorate that email if it's not in the membership area of mailman.

[myles]

Over on the mailing list someone suggested this:

A better solution might be for the list to automatically parse addresses and say "if name+blah@example.com is subscribed, name@example.com can send to the list. But that is probably tricky too ...

That would be a better setup.