Re: SMTP and ports 25 and 1025.
Roberto C. Sánchez wrote in Article
<[🔎] 20070318204008.GD16189@miami.connexer.com> posted to
> On Sun, Mar 18, 2007 at 02:13:08PM +0100, Albert Dengg wrote:
>> to my knowlege, port 587 is for _authenticated_ message transmission,
>> e.g. from your own users, not for server<->server.
> Actually, 587 us the submission port. It has nothing to do with
> authentication. Basically, the RFCs are written such that port 25 is
> supposed to be use for the exchange of messages among mail servers and
> port 587 is the port for users to introduce new messages to the system.
I wonder how often this is actually done in practice however.
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