On Mon, 20 Sep 2010 15:56:35 -0500, Noel Jones <njo...@megan.vbhcs.org> wrote: > On 9/20/2010 3:29 PM, bper wrote: >> >> Hello, >> >> I have set up a postfix-dovecot server with smtp-auth using sasl by >> following this link: >> https://help.ubuntu.com/10.04/serverguide/C/postfix.html >> >> It seems to be working OK. The only thing is that when I view my logs, I see >> a lot of 'relaying denied', 'noqueue reject', 'too many errors after rcpt', >> and 'disconnect' messages from a lot of unknown domain names and ip >> addresses. > > These are normal messages indicating that postfix is working correctly. > > >> >> I'm hoping that this means that the server is secure and doing its job >> bouncing mail from unauthorized requests. >> >> *** Is that true? > > quickie definitions: > > bounce - accept mail and return it to the (likely forged) sender. BAD. > > reject - unwanted mail is not accepted. Notification of legit > senders is the responsibility of the sender's mail server. GOOD. > > Your postfix is apparently doing its job rejecting unwanted mail. > > > For further analysis, show your "postconf -n" and unaltered log > entries you don't understand. > > > -- Noel Jones > > >> >> Even if it was true, it has to be slowing down the server receiving so many >> unauthorized requests. >> >> *** Is there a way to avoid this or is this just a function of life in the >> world of email spam? Would a spam filter like Spamassasin help this type of >> issue? >> >> Thanks!
-:- good example of config are available sign my blog regards
