Hi On Tue, 2020-07-07 at 21:42 +0900, David Leangen wrote: > Hi! > > Please take a look at this image: > > —> https://james.apache.org/images/james-smtp-relay.png > > > I have several questions. 😀 > > > First, is it correct to say that in this image, the “SMTP Service” is > an MTA? Furthermore, is it correct to say that it’s the “terminal” > MTA?
The SMTP service on this schema is just the server you talk to on port 25. The full picture is an MTA. And in this case it's just a relay with some rules. > How does the mail get forwarded from the SMTP server to the Mail > Queue? Would that be via LMTP? Or something else? SMTP Service is talking TCP with the client. When it is asked to deliver a message, it simply calls `enqueue` on the MailQueue. As everything happens in the Java process, you don't have a protocol, just a method call. > > How does the mail get transferred from the queue to the spooler? The spooler basically pull messages from the Queue and then handles them. > And by the way, what the heck is the difference between the queue > and the spooler?? The spooler is the thing taking messages from the queue for processing. The MailQueue allows to decouple the reception from the handling. A spooler usually is able to concurrently process several mails. > After that, the part about the Mailet Container I think makes sense > to me, but everything up to the point is not clear at all, at least > not to me. > > > Thanks as always for helping me understand! > Hope it helps. Cheers, -- Matthieu Baechler --------------------------------------------------------------------- To unsubscribe, e-mail: server-dev-unsubscr...@james.apache.org For additional commands, e-mail: server-dev-h...@james.apache.org
