We are running Imail 5.x. We have all along had SMTP relay security set to
relay for our IP blocks, and AUTH enabled for hosting customers who are
off-net.
Suddenly, we had a rush of Netscape Messenger/Mail clients who suddenly
where being asked to enter their password to send mail out. Going to the
Ipswitch KB, this is a known issue. The fix is to disable AUTH. This creates
a problem for our off-net hosting customers.
I started to play around with the "relay mail for local users" choice.
Instead of restricting access by IP block, this would allow off-net hosting
customers to use our SMTP server, yet still prevent that AUTH error with
netscape.
This is not an ideal solution, though. It still opens us up by allowing
someone to relay mail through us by simply specifying a valid user name.
Has any else run across this situation? Is there a better way of handling
this? A new problem with this fix has cropped up. We outsource some of our
DSL. These customer often have their own mail servers. We now have to enter
those mail hosts and IP addresses into the accept.txt file. And since the
file does not take wildcards, well, you can see the problem becoming quite
cumbersome.
Any thoughts??
--
Scot
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