On 2011-06-01 lst_ho...@kwsoft.de wrote: > Zitat von Ansgar Wiechers <li...@planetcobalt.net>: >> I'm aware of two ways to verify recipients when relaying mail to >> upstream Exchange servers: >> >> - Export recipient addresses from AD and use that list as >> $relay_recipient_maps. >> - Use an LDAP query in $relay_recipient_maps. >> >> I seem to recall that there was a third option where Postfix would probe >> the nexthop before accepting the mail, but was unable to find it in the >> list archive. Can someone refresh my memory? Or did I mis-remember that? > > As always the really fine documentation is of help: > > http://www.postfix.org/postconf.5.html#reject_unverified_recipient
Ah, yes, that seems to be it. Thank you. Regards Ansgar Wiechers -- "Abstractions save us time working, but they don't save us time learning." --Joel Spolsky