* Victor Duchovni <victor.ducho...@morganstanley.com>: > 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.
Maybe if it changes once a week (configurable), but the idea is good. -- Ralf Hildebrandt Geschäftsbereich IT | Abteilung Netzwerk Charité - Universitätsmedizin Berlin Campus Benjamin Franklin Hindenburgdamm 30 | D-12203 Berlin Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962 ralf.hildebra...@charite.de | http://www.charite.de