[Mailman-Users] Different IPs for each list?

J.A. Terranson measl at mfn.org
Mon Dec 15 03:23:20 CET 2008

On Sun, 14 Dec 2008, Mark Sapiro wrote:

> 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
> message.

So, if I understand this correctly, mailman is completely unaware of it's 
own IP, even though it is aware of it's domain names?

I need listA to distribute on and listB to distribute on  
The reverse isnt really an issue, as once the mail gets to the MTA, it's 
effectively at mailman, but I'm trying to wrap my head around a solution 
for breaking up the outgoing mail onto separate IPs.  if I recall, mailman 
IS very much aware of its domain and addresses.  isnt this going to cause 
issues with rewriting virtualized envelopes?

J.A. Terranson

"Never belong to any party, always oppose privileged classes and public
plunderers, never lack sympathy with the poor, always remain devoted to
the public welfare, never be satisfied with merely printing news, always
be drastically independent, never be afraid to attack wrong, whether by
predatory plutocracy or predatory poverty."

Joseph Pulitzer
1907 Speech

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