I have (what I think) is an unusual situation regarding postfix.
I currently have a SuSE installation acting as both a firewall and a gateway for emails (using postfix).
This is currently working fine for our internal Exchange environment allowing all users to send emails to each other and to the internet. Call this machine mailgate.
Now, I have another SuSE installation acting as a monitoring server running VMware. Call this machine brslnx02. However I want to also use it to monitor the CPU Temp sensors and send an email to the internet when over a certain temp. I have written the bash script, but am getting stuck at getting it to send an email to the internet.
The emails are getting stuck in the 'mailq':
9798524E3A 767 Fri Dec 22 12:23:39 email@example.com
(connect to smtp-in.orange.net[18.104.22.168]: Connection timed out)
90CA324E3E 774 Fri Dec 22 12:33:03 firstname.lastname@example.org
(connect to mailgate.domain.com[22.214.171.124]: Connection timed out)
I have looked on the mail logs for mailgate.domain.com but its not even mentioned in the logs.
Anybody any ideas?
I think there is something that I need to put into either brslnx02 or mailgate's postfix config, but am reluctant to 'break' the working email.
If there is any more info that is needed, please ask away.