How is incoming SMTP mail being delivered despite blocked port
- by Josh
I setup a MX mail server, everything works despite port 25 being blocked, I'm stumped as to why I am able to receive email with this setup, and what the consequences might be if I leave it this way. Here are the details:
Connections to SMTP over port 25 and 587 both reliably connect over my local network.
Connections to SMTP over port 25 are…