OTRS smtp, fqdn

[makgab]

Hi!

The otrs sendmail (smtp) function will work with fqdn?
If the otrs machine has no DNS name on the internet, then the sendmail function (with smtp) will not work? Or it depends on smtp server?

[crythias]

The otrs sendmail (smtp) function will work with fqdn?

If the FQDN of the SMTP server/smarthost is resolvable to an IP address, and no mail traffic ports are blocked, and the SMTP host is listening and allows connection from OTRS's IP address, either internally or as provided by NAT (external IP address).

If the otrs machine has no DNS name on the internet, then the sendmail function (with smtp) will not work?

Have you ever browsed the internet with a device that had no DNS name on the Internet? Ever even thought for a minute "This shouldn't be working."?

[makgab]

The otrs is VM in LAN. (No DNS in LAN.)
I set a postfix in the otrs VM and otrs can send mail with function "sendmail".