I was curious if its possible to send an email (in reverse) to a linux server from an email client (like Lotus Notes, Outlook, etc…)?

I know it’s possible to send an email FROM a Linux Server TO a email address, but I tried to just ‘reply’ to the Linux Servers
address that sent it to me but I get a “DELIVERY FAILURE: 550 Host Unknown”? I’ve created quite a few scripts that use
the mail command to send notifications about certain things, like Performance Monitoring data, and stuff like that. But I was
just curious if something like this is possible?

I just figured if you could send emails then maybe you could receive them too…?

Any thoughts would be great!

Thanks in Advance,
Matt