[Mailman-Users] slightly OT: on not becoming a spam source

Larry Stone lstone19 at stonejongleux.com
Fri May 30 13:35:00 CEST 2008

On 5/29/08 11:37 PM, Jim Popovitch at yahoo at jimpop.com wrote:

> On Fri, May 30, 2008 at 12:18 AM, David Newman <dnewman at networktest.com>
> wrote:
>> Hmmm. I must be missing something, as the system is still associating each
>> Message-ID with all 250 list subscribers.
> VERP has nothing to do with Message-ID, and everything to do with
> Return-Path and Sender:   ;-)

With VERP and personalization, the Return-Path, instead of being
"listname-bounces at sendingdomain" becomes
"listname-bounces+recipient=destdomain at sendingdomain".

I think you said you're using Postfix in which case you need
"recipient_delimiter = +" in your main.cf so it knows about the plus signs
in the return paths.

When you then get the AOL TOS e-mail, you can figure out who the list
recipient was as while AOL redacts the AOL recipient, they don't touch the

As you have observed, the original message-ID is still preserved.

Larry Stone
lstone19 at stonejongleux.com

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