Sean Reifschneider: > On 03/24/2010 10:36 AM, Randy wrote: > > EX: > > <r...@theholycat.com>: Sender address rejected: Domain not found (in > > reply to RCPT TO command)) > > I'd be tempted to set up a milter or policy filter that for each rcpt > would connect to the Exchange server (assuming that's where it's destined) > and see if that server will accept it. There's probably a better way to do > it, but that's what comes to my mind.
You could also use Postfix's built-in recipient address verification feature. http://www.postfix.org/ADDRESS_VERIFICATION_README.html#recipient Wietse