Victor Duchovni:
> On Thu, Jun 10, 2010 at 09:50:16AM -0400, Wietse Venema wrote:
>
> > If the postmaster address is excluded from spam checks then you
> > may want to change the address_verify_sender setting.
> >
> > The current default is:
> > address_verify_sender = $double_bounce_sender
> >
> > The older (problematic) default is
> > address_verify_sender = postmaster
> >
> > The final ultimate fix is to make address_verify_sender time-dependent,
> > so that it does not become a spam sink itself.
>
> Making it time-dependent address_verify_sender may somewhat compound
> issues with grey-listing at the origin domain. It is useful to have a
> value that is stable enough to not repeatedly be subjected to greylisting.
I was thinking of a monthly change just enough to frustrate harvesting
but not enough to cause problems. Quarterly might do it too.
Wietse
