Postfix error after upgrading

[dejan.b]

Hi!

Recently i ugraded one more Debian server from Debian 5 to 6 and i upgraded ISPConfig too.

Now i'm issuing problem with postfix i can receive mails but i can't send them.
In logs i see this error message:

server postfix/smtp[10985]: C16083940ED: to=<my_email@gmail.com>, relay=none, delay=481, delays=376/0.12/105/0, dsn=4.4.1, status=deferred (connect to alt4.gmail-smtp-in.l.google.com[173.194.79.27]:25: Connection timed out)

It always show connection timed out, to every server (yahoo, live)etc...

I don't have firewall, my ISP doesn't block any ports too...

Regards!

[till]

Please post the exact error messages from the mail.log file.

[dejan.b]

Originally Posted by till

Please post the exact error messages from the mail.log file.

I don't have error messages in mail.log, only in syslog, this message above is from syslog...

Regards!

[Mark_NL]

Try to telnet to the gmail server from your box. You should get something like this:

mark@hosting02:~$ telnet 173.194.79.27 25
Trying 173.194.79.27...
Connected to 173.194.79.27.
Escape character is '^]'.
220 mx.google.com ESMTP wt7si10573359pbc.352


if that doesn't work, try to ping 173.194.79.27. If that works, your ISP mostlikely blocks port 25 to servers that are not owned by the ISP (which is pretty common nowadays).