RE: [cobalt-users] Open Relaying

["Dan Kriwitsky" <dan@xxxxxxxxxxxxx>]

> > Many ISPs are now blocking port 25, so this may not work for
> > some. Those on AOL only think they're relaying via their
> > server when in fact AOL is intercepting the mail and sending
> > it via their SMTP.
>
> Out of curiosity, why would they do this? I can't seem to come up with a
> logical or useful reason from their end. It even seems counterproductive;
> after all, if I send a terrorist threat and use someone else's SMTP rather
> than theirs, whatever ramifications or exposure they might fear would be
> reduced, right?
>

I'm not sure I understand what you don't get. Blocking port 25? Stops direct
to MX spam. If an ISP leases POPs from uu.net, they want mail to go through
their domain.net SMTP not to be sent from *.da.uu.net.
Same with AOL.
--
Dan Kriwitsky