Hi guys, I just configured Nagios on a Debian Squeeze (instead of Lenny, considering the Howto you provide here ), but I can't get the mail notification working. I receive the same messages again and again : Apr 18 22:27:54 nagios postfix/smtp[14606]: connect to mail.domain.net [XXX.XXX.XXX.XX]:25: Connection timed out Apr 18 22:27:54 nagios postfix/smtp[14606]: 4985E1E04D: to=<[email protected]>, relay=none, delay=417, delays=396/0.02/21/0, dsn=4.4.1, status=deferred (connect to mail.domain.net[XXX.XXX.XXX.XX]:25: Connection timed out) Apr 18 22:27:54 nagios postfix/smtp[14607]: connect to mail.domain.net[XXX.XXX.XXX.XX]:25: Connection timed out Apr 18 22:27:54 nagios postfix/smtp[14607]: 7F43E1E045: to=<[email protected]>, orig_to=<root@localhost>, relay=none, delay=417, delays=396/0.02/21/0, dsn=4.4.1, status=deferred (connect to mail.domain.net[XXX.XXX.XXX.XX]:25: Connection timed out) Any ideas ? Could it be a relay issue ? Any help/idea welcome ! Regards, S.
Is mail.domain.net a remote server? If so, please check if your server is blacklisted: http://www.mxtoolbox.com/blacklists.aspx
Mail server blacklist Hi Falko, Thank you for your kind answer. Yes, mail.domain.net is a remote server. No, it is not blacklisted. I keep searching why it failed... Regards, S.
Problem solved Guys, I solved the problem by configuring postfix to use a smarthost, ie my provider smtp server... Thank you Falko for your time. Kind regards, S.
