[Mailman-Users] Different IPs for each list?

Mark Sapiro mark at msapiro.net
Mon Dec 15 01:25:46 CET 2008

J.A. Terranson wrote:
>Let me try again.
>Right now I have every list at lists.blah.org
>I want to keep that.  But when traffic goes to or from a particular list, 
>i want it routed over s separate IP address so that I can shove them down 
>separate PVCs.
>I want to keep the one address web interface for all lists and archives.

I'm still not sure I understand, but if I do, there's nothing in
Mailman to either support or inhibit this.

If I mail to listx at lists.blah.org, my MTA is going to look up the MX
for lists.blah.org and make it's SMTP connection to that IP. If you're
saying you want a different route from that MX to the Mailman host
depending on list name, that would be something the MTA in the MX
would have to do. Ultimately, the mail would arrive at the Mailman
host and an MTA there would pipe it to the mail wrapper and Mailman
would process it.

Outbound, Mailman delivers all mail to one MTA which is usually
listining on localhost:25 but can be anywhere. If you want mail from
different lists to go out from different IPs, it would be up to that
MTA to send it differently depending on the envelope sender of the

Mark Sapiro <mark at msapiro.net>        The highway is for gamblers,
San Francisco Bay Area, California    better use your sense - B. Dylan

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