>The reason I ask is this bounce; > >... ><ia...@varna.net>: host mail.varna.net[217.145.80.1] said: 550 5.7.1 >Blocked by SpamAssassin (in reply to end of DATA command)
This is Spamassassin milter in action. Consult your distribution repository or have a look at: http://savannah.nongnu.org/projects/spamass-milt/ D.