Sorry i just spotted a mistake in the telnet example, correct is the following: +++ snip2 +++ $ telnet localhost 25 Trying 127.0.0.1... Connected to mail.myserver.com. Escape character is '^]'. 220 mail.myserver.com ESMTP Postfix ehlo localhost 250-mail.myserver.com 250-PIPELINING 250-SIZE 26214400 250-ETRN 250-STARTTLS 250-AUTH LOGIN PLAIN 250-AUTH=LOGIN PLAIN 250-ENHANCEDSTATUSCODES 250 8BITMIME mail from:<newslet...@somedomain.com> 250 2.1.0 Ok rcpt to:<bla...@olddomain.com> 554 5.7.1 <bla...@olddomain.com>: Recipient address rejected: Please send your mail to our new domain newdomain.com 421 4.7.0 mail.myserver.com Error: too many errors Connection closed by foreign host. +++ snip2 +++
-------- Original-Nachricht -------- Betreff: REJECT mails to a specific domain -> ERROR mail to postmaster Von: Michael Weissenbacher <m...@dermichi.com> An: postfix-users@postfix.org Datum: 21.09.2010 13:00 > Hi List! > I have the following problem: one of our customers got a new domain > "newdomain.com" where all mail addresses have been transferred to. They > also got an old domain "olddomain.com" which had some mail addresses > before. It was decided to not use the old domain for receiving emails > any more (and still use it for the website). There may be many people > who have n...@olddomain.com in their address books and may still send > mails there, so the customer would like that they are informed about the > new domain name. I came up with this "clever" solution: > > /etc/postfix/relay_recipient_verify: > olddomain.com REJECT Please send your mail to our new domain > newdomain.com > /etc/postfix/main.cf: > ... > smtpd_recipient_restrictions = > check_recipient_access > hash:/etc/postfix/relay_recipient_verify, > ... > > The solution works well so far and anybody who tries sending mail to the > old domain gets back the error message. > > BUT - now for every mail that is sent to olddomain.com an ERROR Mail is > sent to the Postmaster that looks like this: > +++ snip1 +++ > From: Mail Delivery System [mailto:mailer-dae...@mail.ourserver.com] > Sent: Tuesday, September 21, 2010 12:45 PM > To: Postmaster > Subject: Postfix SMTP server: errors from mail.someserver.com[1.2.3.4] > > Transcript of session follows. > > Out: 220 mail.myserver.com ESMTP Postfix > In: EHLO mail.someserver.com > Out: 250-mail.myserver.com > Out: 250-PIPELINING > Out: 250-SIZE 26214400 > Out: 250-ETRN > Out: 250-STARTTLS > Out: 250-AUTH LOGIN PLAIN > Out: 250-AUTH=LOGIN PLAIN > Out: 250-ENHANCEDSTATUSCODES > Out: 250 8BITMIME > In: STARTTLS > Out: 220 2.0.0 Ready to start TLS > In: EHLO mail.someserver.com > Out: 250-mail.myserver.com > Out: 250-PIPELINING > Out: 250-SIZE 26214400 > Out: 250-ETRN > Out: 250-AUTH LOGIN PLAIN > Out: 250-AUTH=LOGIN PLAIN > Out: 250-ENHANCEDSTATUSCODES > Out: 250 8BITMIME > In: MAIL From:<newslet...@somedomain.com> SIZE=28675 > Out: 250 2.1.0 Ok > In: RCPT To:<bla...@olddomain.com> > Out: 451 4.3.5 Server configuration error > Out: 421 4.7.0 mail.myserver.com: too many errors > > Session aborted, reason: too many errors > > For other details, see the local mail logfile > +++ snip1 +++ > > Trying to deliver a mail via telnet i get the following result: > +++ snip2 +++ > $ telnet localhost 25 > Trying 127.0.0.1... > Connected to mail.myserver.com. > Escape character is '^]'. > 220 mail.myserver.com ESMTP Postfix > ehlo localhost > 250-mail.myserver.com > 250-PIPELINING > 250-SIZE 26214400 > 250-ETRN > 250-STARTTLS > 250-AUTH LOGIN PLAIN > 250-AUTH=LOGIN PLAIN > 250-ENHANCEDSTATUSCODES > 250 8BITMIME > mail from:<newslet...@somedomain.com> > 250 2.1.0 Ok > rcpt to:<bla...@olddomain.com> > 550 5.1.1 <bla...@olddomain.com>: Recipient address rejected: User > unknown in local recipient table > 421 4.7.0 mail.myserver.com Error: too many errors > Connection closed by foreign host. > +++ snip2 +++ > > For now i've just configured postmaster to deliver -> /dev/null because > we were getting 100+ of these annoying messages per hour. > > What have i done wrong and how can i prevent postfix from generating > these error messages? > > Postfix version is 2.6.5 > > tia, > Michael >
