Re: Outbound SMTP

[Jeff Kell <jeff-kell () UTC EDU>]

Kreider, Randall G wrote:
> Blocking SMTP outbound would break anyone that has their machine
> configured to route mail through an external SMTP server.  The
> response that talks about relaying is not saying anything glamorous
> about capturing and rerouting traffic.  They were simply saying that
> they allow students to directly submit SMTP mail to their servers and
> then relay it out for them.  We already do that.  Our recommended
> configuration for POP or IMAP is to use smtp.etown.edu as the
> designated SMTP server.

We rate limit SMTP outbound from anything other than our official
gateways.  This seems like a working compromise after having numerous
complaints from laptop users that had their agents setup to use their
"home" services.

We don't limit mail submission (587) or secure SMTP (465).

Jeff