ER> There's one problem I can see about dbmail's last_login field, for use with
ER> POP before SMTP authentication methods..

There are other problems with POP-before-SMTP, but it is a convenient
way to deal with a situation. If you're REALLY concerned about
allowing the wrong people to forward through your MTA, though, one of
the more intrusive methods would be much better. These are beyond the
scope of DBMail.

One of the local universities, for example, will let anyone check
their POP/IMAP boxes from anywhere... but you can only SEND if you
first establish a VPN connection to their internal network, and send
the email from a trusted, internal IP. Unfortunately for them (and the
rest of the world!), it hasn't stopped people from using
poorly-configured machines on their network to forward spam, because
they're feeding mail to the main servers on the "protected" net...

The most likely place you're going to have trouble with P-b-S
authentication is AOL or other proxy users. I know this doesn't "fix"
anything, but it does narrow the potential abusers.

-- 
Jeff Brenton
President,
Engineered Software Products, Inc
http://espi.com
Questionable web page: http://dididahdahdidit.com

Liberalism grants you the freedom to advocate any idea*.
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