[IMail Forum] AT&T blocking SMTP port?

[scott.perry]

I heard recently that there was a large ISP that was blocking their dialup users from 
sending to port 25 (SMTP).  It appears that AT&T is now doing the same thing; can 
anyone confirm this?

When a user dialed into AT&T, he could telnet to port 110 (POP3) but not port 25.  I 
double-checked to make sure from a different machine that port 25 was indeed 
responding.  The only assumption I can make is that either AT&T is now blocking port 
25, or there was a very, very unusual problem.
                             -Scott
Please visit http://www.ipswitch.com/support/mailing-lists.html 
to be removed from this list.