I only want to send email from my VPS through exim4.
When I run netstat -anltp | grep "LISTEN" the output is:
tcp 0 0 123.45.789.10:25 0.0.0.0:* LISTEN - tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN -
Does the fact that my public ip is listening on port 25 means that someone is sending mail also through my server?
My /var/log/exim4/mainlog file is filled with message like below and I got a message from google saying "mail sent from your IP address has been blocked".
2012-10-03 13:42:36 1TJJE5-0002WP-MG Message is frozen 2012-10-03 13:42:36 1TIkPN-0003Ck-Sy Message is frozen 2012-10-03 13:42:36 End queue run: pid=20219 2012-10-03 14:12:35 Start queue run: pid=20258 2012-10-03 14:12:35 1TIkPN-0003Ck-Sy Unfrozen by errmsg timer 2012-10-03 14:18:20 1TIkPN-0003Ck-Sy SMTP timeout while connected to primary.mail.mailprovider.nl [12.34.567.89] after initial connection: Connection timed out 2012-10-03 14:18:21 1TIkPN-0003Ck-Sy ** email@example.com R=dnslookup T=remote_smtp: SMTP error from remote mail server after RCPT TO:<firstname.lastname@example.org>: host fallback.mail.mailprovider.nl [123.45.678.900]: 550 no mailbox by that name is currently available 2012-10-03 14:18:21 1TIkPN-0003Ck-Sy email@example.com: error ignored 2012-10-03 14:18:21 1TIkPN-0003Ck-Sy Completed 2012-10-03 14:18:21 1TJJE5-0002WP-MG Message is frozen 2012-10-03 14:18:21 1TIlFL-0000hI-NF Message is frozen
I am bit lost here. Thanks for any help in advance.