Posts Tagged ‘ smtp ’

SMTP server not sending: NOQUEUE: reject: RCPT from unknown[] 451 4.3.0 : Temporary lookup failure – Too many mysql Connections

Jun 16th, 2012 | By

So are you seeing this error message in thunderbird or evolution? ┬áChances are your smtp server isn’t able to connect to mysql properly as there are too many current connections for it to get in there. To test this theory go into mysql on the server and type SHOW GLOBAL STATUS; Chances are your going
[continue reading…]

Postfix spewing relay access denied errors for outgoing email

Jan 12th, 2012 | By

So out of the dozens of email accounts I setup on my new Debian server with postfix/dovecot one of them was unable to send emails.. No bloody idea why, maybe these guys were the only ones using outlook express, I don’t know but the bottom line is that none of the emails were going out
[continue reading…]