How to Enable Local SMTP Server (Postfix) on OS-X Leopard
Edit org.postfix.master.plist:
$ sudo vi /System/Library/LaunchDaemons/org.postfix.master.plist
add:
<key>RunAtLoad</key>
<true/>
<key>KeepAlive</key>
<true/>
Start postfix:
$ sudo launchctl start org.postfix.master
Check that SMPT is running:
$ telnet localhost 25
