listens on *:smtp by default

[Matt Zimmerman]

The default MTA must listen either on localhost, or not at all, by default.
Ideally, it would only listen elsewhere if configured to act as an internet mail
server

[LaMont Jones (lamont)]

Fixed in 2.1.3-1ubuntu6 - when told to be 'local only', or 'satellite system',
postfix will now only listen on 127.0.0.1 and ::1

[Matt Zimmerman (mdz)]

debian:/home/mdz# dpkg -l postfix
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name Version Description
+++-==============-==============-============================================
ii postfix 2.1.3-1ubuntu6 A high-performance mail transport agent
debian:/home/mdz# netstat -tnlp | grep :25
tcp 0 0 0.0.0.0:25 0.0.0.0:* LISTEN
4415/master
tcp6 0 0 :::25 :::* LISTEN
4415/master

I tried both local-only and satellite configurations, with the same result.

[Matt Zimmerman (mdz)]

OK, it seems to work on new installs. However, purging postfix and postfix-tls
seems to leave /etc/postfix/*.cf behind, and so when reinstalled, the
configuration is still there. "purge" should remove the configuration.