On Tue, 2020-03-24 at 10:55 -0700, Mike Wright wrote:
Dovecot is an IMAP(s) POP3(s) server. It has no need for accepting
anything on ports 25, 465, or 587. Those are smtp ports.
It also has a MSA feature:
https://doc.dovecot.org/admin_manual/submission_server/
RFC definitions (for those who don't want to look that up):
Message Submission Agent (MSA):
A process that conforms to this specification. An MSA acts as a
submission server to accept messages from MUAs, and it either
delivers them or acts as an SMTP client to relay them to an MTA.
Message Transfer Agent (MTA)
A process that conforms to [SMTP-MTA]. An MTA acts as an SMTP server
to accept messages from an MSA or another MTA, and it either delivers
them or acts as an SMTP client to relay them to another MTA.
--
uname -rsvp
Linux 3.10.0-1062.18.1.el7.x86_64 #1 SMP Tue Mar 17 23:49:17 UTC 2020 x86_64
Boilerplate: All unexpected mail to my mailbox is automatically deleted.
I will only get to see the messages that are posted to the mailing list.