On Thu, Apr 10, 2008 at 10:30 AM, Barry Shein <[EMAIL PROTECTED]> wrote: > <SNIP> > 421 4.7.0 [TS01] Messages from MAILSERVERIP temporarily deferred due > to user complaints - 4.16.55.1; see http://postmaster.yahoo.com/421-ts01.html > > (where MAILSERVERIP is one of our mail server ip addresses) >
Domainkeys solved my problem. I had the exact same thing happen, sometimes it wouldn't even make it to the box. Setup domain keys, and my problem went away.
