On 21/12/2019 16:21, The Natural Philosopher wrote:
On 21/12/2019 15:45, John Rumm wrote:
I think most would be comfortable with the concept of a "SMTP server",
a "POP3 server" and an "IMAP server" as being fair description a
software process running on a server that implements the server end of
those protocols.

They might be, but the established terminology is of an SMTP relay,
because it *serves* nothing.

If it sits there with an open rendezvous port, waiting for a client to
connect, then its a server.

The term SMTP server is in very common use. For example:

https://tools.ietf.org/html/rfc5321#section-7.9

(131 matches for "SMTP Server" in there, Vs 3 for "SMTP Relay")




--
Cheers,

John.

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