I'm really not sure what's going on here.
If I telnet into my server from outside of my own network, everything seems to work fine. I see "220 mail.server.com ESMTP Postfix". I sent it EHLO me.local and everything worked perfect.
If I telnet into my server from one of my other servers, I didn't get the 220 response. I tried my EHLO me.local and got no server response. It used to be working and I'm not sure why it's not working here.
Setup: I recently installed a GoDaddy certificate which is working perfect.
Enable Authentication = yes
TLS authentication only = yes
Web mail MTA Hostname = localhost
Web mail MTA Port = 25
Relay MTA for external delivery = blank
Web mail MTA timeout (s) = 60
MTA Trusted Networks = 127.0.0.0/8 192.168.1.0/24 192.168.0.0/24
- servers use both subnets but primarily .0.*
Enable DNS lookups = yes
This exact setup had been working for a long time now.
Hopefully this is enough information to help somebody help me.