Postfix servers are only listening on localhost port 25.
Issue
- I have smpt servers running postfix, and they can't telnet or ssh to each other on port 25.
netstat -tunap |grep 25shows:
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 2218/sendmail
Environment
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
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