[Mailman-Users] Disabling VERP

[Richard Barrett]

At 22:02 04/02/2003, Tom Maddox wrote:
> > > > >So, is it possible to disable the VERP functionality in some
> > fashion?  My
> > > > >users would prefer to have regular From: and Reply-to:
> > headers, not the
> > > > >irritating VERP ones.  I'm hesitant to make changes to the
> > > > VERP_FORMAT and
> > > > >VERP_REGEXP lines in mm_cfg.py without knowing precisely what
> > > > effect doing
> > > > >so will have, plus I'm not entirely sure that those are the
> > > > lines I should
> > > > >be changing.
> > > > >
> > > > >TIA,
> > > > >
> > > > >Tom
> > >
> > > > You shouldn't need to change VERP_FORMAT and VERP_REGEXP to
> > > > disable VERP'ing
> > > >
> > > > The following variables should disable VERP'ed return addresses:
> > > >
> > > > VERP_PASSWORD_REMINDERS = 0
> > > > VERP_PERSONALIZED_DELIVERIES = 0
> > > > VERP_DELIVERY_INTERVAL = 0
> > > > VERP_CONFIRMATIONS = 0
> > > >
> > > > If these are set so (installation default ??) then your users
> > > > shouldn't be
> > > > seeing VERP'ed return addresses
> > >
> > >Good theory, but sadly false.  I didn't configure anything special when I
> > >upgraded to 2.1, and I'm getting the VERP headers.
> > >
> >
> >
> > Odd because this is exactly the setup I have with MM 2.1 and Mailman does
> > not send out VERP'ed return address. But it did for a period when I set
> > VERP_DELIVERY_INTERVAL = 1 to evaluate the performance impact of VERP'ing
> > (and flush out a few irritating untraceable bouncing mail
> > addresses). When
> > I changed back to VERP_DELIVERY_INTERVAL = 0, return addresses stopped
> > being VERP'ed and the outgoing mail started being chunked again.
>
>I tried twiddling the VERP_DELIVERY_INTERVAL setting, but it made no
>difference.

It looks like the code that initiates VERP'ed return addresses is in 
$prefix/Mailman/Handlers/ToOutgoing.py and is enacted in 
$prefix/Mailman/Handlers/SMTPDirect.py.

I cannot see anything in those modules that would lead to VERP'ing without 
one of the appropriate variable being true.

What exactly is being logged by your SMTP host for the messages which your 
users complain of?