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Old 10th May 2013, 13:27
martin1977 martin1977 is offline
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Default mail services got stirred up

I use ISPconfig 3.0.5.2 on Debian 7.0 and Mysql 5.5.30+dfsg-1.1, postfix 2.9.6-2, courier 0.68.2-1 . Since yesterday incoming mails are rejected and I cannot send emails because I get an authentication error. I can however login to imap mailboxes.

Logs:
Trying to send a mail in auth.log
Code:
May 10 12:54:02 BLANKED postfix/smtpd[8448]: sql plugin could not connect to host 127.0.0.1
May 10 12:54:02 BLANKED postfix/smtpd[8448]: sql plugin couldn't connect to any host
May 10 12:55:01 BLANKED mysqld[5718]: refused connect from 127.0.0.1
An incomming mail event in mail.log
Code:
May 10 13:08:29 BLANKED postfix/smtpd[8725]: connect from smtpout.howtoforge.com[78.47.44.38]
May 10 13:08:29 BLANKED postfix/trivial-rewrite[8813]: warning: proxy:mysql:/etc/postfix/mysql-virtual_domains.cf: table lookup problem
May 10 13:08:29 BLANKED postfix/trivial-rewrite[8813]: warning: virtual_mailbox_domains lookup failure
May 10 13:08:29 BLANKED postfix/smtpd[8725]: warning: mysql:/etc/postfix/mysql-virtual_client.cf: table lookup problem
May 10 13:08:29 BLANKED postfix/smtpd[8725]: NOQUEUE: reject: RCPT from smtpout.howtoforge.com[78.47.44.38]: 451 4.3.5 <smtpout.howtoforge.com[78.47.44.38]>: Client host rejected: Server configuration error; from=<www-data@http4.howtoforge.com> to=<BLANKED> proto=ESMTP helo=<smtpout.howtoforge.com>
May 10 13:08:29 BLANKED postfix/smtpd[8725]: disconnect from smtpout.howtoforge.com[78.47.44.38]
Weird thing: When I try to login with
Code:
mysql -u *user* -p
and use the credentials stored in the *.cf files of the postfix configuration, I can login, change to the specified database and place a query.
Any help is appreciated.

P.S.: I already set max_connections and max_user_connections to 500 in the mysql config.
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