Patrick Lists wrote: > On 11/28/2013 10:34 PM, Timothy Murphy wrote: >> I'm running postfix + dovecot on my CentOS server, >> together with amavisd, clamd and spamassassin, >> following the instructions in >> <http://wiki.centos.org/HowTos/postfix>. >> As far as I can see it is all working, >> but I must admit I'm not clear exactly what path >> an incoming email travels along. >> I asked this question before, and someone suggested >> a document I should read, >> but unfortunately I've mislaid the note I made at the time. >> >> So if someone could enlighten me - >> or point to a source of enlightenment - >> I should be most grateful. > > http://www.postfix.org/OVERVIEW.html I'm afraid this document only tells me about one small step on the journey. It doesn't mention amavis, fetchmail or dovecot. I run fetchmail (through cron.d) to collect email from various email servers. So the first step, I guess, is that fetchmail passes the email through port 25 to the postfix sendmail emulator? -- Timothy Murphy e-mail: gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin 2, Ireland