[IMail Forum] BellSouth now blocking port 25

[Darin Cox]

In case others run into questions from their users.  I've just heard from a customer that just switched to BellSouth that BellSouth has started blocking port 25 traffic.   So, it's either switch to a different port for your users, recommendation seems to be port 587, or tell them to use BellSouth's outgoing servers.  Kinda puts a damper on SPF utilization unless you switch to 587...and I wonder how long before ISPs start blocking 587.  Certainly it doesn't take much for spammers to switch to 587 as well. Darin.