[Solved] HELO reply is internal servername
Our HELO reply is the internal servername. Is it possible to change it to the external FQDN?
This isn't a CloudPanel issue but you can: https://technet.microsoft.com/en-us/library/bb124740(v=exchg.150).aspx
Thanks...Gonna have a look at it.. 🙂
It's working now! Thanks for the tip, but the actual solution was smtp inspection within our firewall (Cisco ASA)