METROCAST BLOCKS RESIDENTIAL E-MAIL

[Christopher Schmidt]

On Tue, Mar 07, 2006 at 03:34:56PM -0500, Jeff Kinz wrote:
> If they are filtering for Spam on outbound packets whose dport is 25 then
> I think its probably a good thing.

I would guess they are following the same path that Comcast and many
other internet service providers have followed before, of blocking port
25.

This is neither unusual, nor unexpected. And there's also the fact that
even if you could send mail out before, you were somewhat likely to be
blocked on the receiving end by things like RBLs that block dynamic or
otherwise known-residential hosts.

This is not technical incompetence. This is a decision that's being
made, which has numerous reasonable reasons behind it -- the largest
being that most mail going out to port 25 from residential connections
*is* either spam or an exploited machine, as most users run Windows, and
Windows does not use an smtpd running on localhost to send out mail (at
least, not in most cases).

-- 
Christopher Schmidt
Web Developer