On Sat, Feb 18, 2012 at 04:17:58PM +0100, Tilman Schmidt (t.schm...@phoenixsoftware.de) wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Am 18.02.2012 06:57, schrieb Jobst Schmalenbach: > > I have a mailserver that staff on mobile devices can use for sending email > > on behalf of our domain. > > This is done using port 465, ssl and authentication. > > Is there any reason why you don't use the Mail Submission port 587 which > has been designated specifically for that purpose?
Yes, a number of things. A number of clients (this includes thunderbird and some apple clients) come by default sset to 465 so I guess that is one reason why I chose this. The other point is that port 465 is an SSL channel with SMTP inside it, so right from the start on the data is encrypted. [root ~] #>grep smtp /etc/services smtp 25/tcp mail smtp 25/udp mail smtps 465/tcp # SMTP over SSL (TLS) But AFAIK both are correct. Jobst -- There are 10 kinds of people in the world, those who understand binary and those who don't. | |0| | Jobst Schmalenbach, jo...@barrett.com.au, General Manager | | |0| Barrett Consulting Group P/L & The Meditation Room P/L |0|0|0| +61 3 9532 7677, POBox 277, Caulfield South, 3162, Australia _______________________________________________ NOTE: If there is a disclaimer or other legal boilerplate in the above message, it is NULL AND VOID. You may ignore it. Visit http://www.mimedefang.org and http://www.roaringpenguin.com MIMEDefang mailing list MIMEDefang@lists.roaringpenguin.com http://lists.roaringpenguin.com/mailman/listinfo/mimedefang