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
