ClearOS Adding a second listener port on Postfix (great for closed ISP SMTP ports)

1. Login to your ClearOS as root (use Putty.exe)
2. Edit /etc/postfix/master.cf as follows: find the line that says "smtp inet n - n - - smptd"copy the line or change the line "smtp" to "2525" or whatever port you want the postfix daemon to use.
3. vi /etc/postfix/master.cf
4. to copy line press Y
5. to paste line press P
6. replace on the pasted line the word smtp to 2525
   
7. press Esc
   
8. wq!

Restart postfix "/etc/init.d/postfix restart".

Go to Network- Firewall- Incoming
Add Nickname/port: SMTP2525
Select: TCP
PortBox: 2525
click add

Configure Outlook advanced SMTP options to point to port 2525 instead of default 2525

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