Lenny Mastrototaro writes:
> An MX record must contain a domain name, not an IP address, right?
Correct, RFC1035 is crystal clear about it.
> How do you effectively deal with ezines that have bad envelope
> senders?
I bounce it. However, I'm not sure that existing patches correctly detect
broken MX records of this kind.
> Note, I can't just block this mail because it is important
> to my users. The problems arise when a user leaves or
> subscribes with a misspelled address. The bounces can't
> get back to the sender and so they don't get automagically
> unsubscribed until I deal with it manually.
Well, you'll have to make a judgement call here. You'll either have to
continuously waste time dealing with other people's mistakes, or you'll
have to tell your users that their mailing list provider doesn't know how
to properly configure his machines, and that's why they're not getting
their mailing list traffic.
--
Sam
