[Linux4christians] Re: unbuntu and smtpd auth
karl at charcoal.com
Sat Aug 5 15:08:00 EDT 2006
"Bob Lydiate" <livingsky at gmail.com> writes:
> I am a little confused. What is the difference between smtp and imap/pop3?
SMTP is simple mail transfer protocol, and it is how mail gets moved
from source user to destination user, where "to destination user"
means it finally lands on a server, dropped into the mailbox held for
that user. It includes the possibility of intermediate store-and-
forward if necessary (esp. for destinations that aren't actually
IP-attached), bulk queuing, periodic delivery retries for remote
servers that are found to be unavailable, ...
IMAP and POP are for client access to their mailboxes in their
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