josedieguez I had a server having the same issue. I only realized it when a ticket response from that particular server failed to be delivered. I checked the server and saw email was down. I performed a graceful reboot because a new kernal had been installed and expected that everything would be normal, but the email role was still down. I did another graceful restart of just the email role, and when that didn't appear to work a did a forceful restart. That seemed to restart the email role for me FWIW.
I guess the original complaint about the email situation was edited? I'll leave this here in case it worth preserving.