On Thu, Feb 27, 2003 at 12:41:41AM -0600, RL 'Bob' Morgan wrote:
Many sites, including my university, support STARTTLS+AUTH on the
Submission port (587, RFC 2476), which I believe is the recommended
service for clients to use to submit mail in any case (though not
well-supported among MUAs, to my knowledge), and also is effective at
getting around ISP blockage of port 25. Of course if it becomes very
popular the misguided ISPs will block it too.
Yup, the problem with well-known ports is that well-known port numbers
get either (a) blocked by misguded ISP's, or (b) transparently proxed
by misguided ISP's. Since I have no idea what sort of stupidity I
might encounter at various different hotel, conference, or 802.11
hotspot networks, it's more convenient for me to use a non-standard
The MUA issue isn't important in my case, because I run a local MTA on
my latop (exim), which is configured to do the STARTTLS and AUTH, so I
can use any MUA I wish.