Hello, My MTA (postfix) has both 25 (non-SSL) and 465 (SSL) ports enabled.
How to enforce the peer MTA send messages only to 465 port for better secure communication?
Can I just shutdown port 25? Thanks.
Hello, My MTA (postfix) has both 25 (non-SSL) and 465 (SSL) ports enabled.
How to enforce the peer MTA send messages only to 465 port for better secure communication?
Can I just shutdown port 25? Thanks.