We are running OS X Server 5.0.15 on OS X El Capitan 10.11.2
I have already purchased certificate and added in the server.
Following ports are currently open :
25, 993, 143 and 587.
We want to use 465 port instead of 25. But we can not use port no 465 as it is not accessible anywhere.
Do I need to update any setting to enable this port?
Any help will be appreciated.
Mac mini, OS X El Capitan (10.11.1)
TCP 587 is the ESMTP submission port that Apple Mail.app and most other mail clients use, via STARTTLS.
Getting TCP 465 to work will require manual configuration in Postfix.
The file you'll be editing via the command line is /Library/Server/Mail/Config/postfix/master.cf
Search for 465 there, and read the comments from the folks at Apple.
To make the changes...
sudo serveradmin stop mail
edit the file and save it, and then...
sudo serveradmin start mail
Related: StackOverflow, Krypted
Tattwam wrote:
Following ports are currently open :
143
If you have a certificate and port 993 (Secure IMAP) working you should close, not use, port 143 insecure IMAP. There are no benefits and your passwords may go out in plain text.
Tattwam wrote:
We want to use 465 port instead of 25.
Why? Assuming you want to use it for client email submission (not incoming email from Internet to your server) and you have port 587 functioning there is no need or benefit.
SSL SMTP Port 465 closed
