From owner-freebsd-questions Tue Apr 3 11:19:49 2001 Delivered-To: freebsd-questions@freebsd.org Received: from akira.lanfear.com (akira.lanfear.com [208.12.11.174]) by hub.freebsd.org (Postfix) with ESMTP id 3740837B720 for ; Tue, 3 Apr 2001 11:19:46 -0700 (PDT) (envelope-from mwlist@lanfear.com) Received: from sapporo.lanfear.com (h-64-105-36-216.snvacaid.covad.net [64.105.36.216]) by akira.lanfear.com (8.9.3/8.9.3) with SMTP id LAA61520; Tue, 3 Apr 2001 11:19:38 -0700 (PDT) (envelope-from mwlist@lanfear.com) Date: Tue, 3 Apr 2001 11:19:38 -0700 (PDT) From: Marc W Message-Id: <200104031819.LAA61520@akira.lanfear.com> To: Edwin Groothuis , Daniel Mester Cc: questions@FreeBSD.ORG Subject: Re: 587/tcp ? MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" X-Mailer: Kiltdown 0.7 Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > > what is the service using "submission 587/tcp"? > > It's for the submission of smtp-email (maybe other email too), so > that port 25 will be used for talking between MTAs and port 587 > will be used for talking between MUA and MTA's. > > MUA: Mail User Agent, your mailreader > MTA: Mail Transfer Agent, postfix/sendmail et al So was it true at some point in time that MUAs should connect to port 587 for SMTP instead of port 25, or does a MTA like Sendmail know to move to port 587 when an MUA connects? marc. Marc W, San Francisco, CA Kiltdown -- a free email client for X www.kiltdown.org -- it's what's underneath that counts. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message