[OPLINTECH] Another virus related spam issue, but a new solution

[Karl Jendretzky]

All,
    I was greeted this morning with yet another infected library machine 
using the OPLIN mail server as a spam cannon. I've already spoken to the 
library, and if any details come up that could be useful to the group, 
we'll let you know.

With increased virus activity out in the libraries, I'm trying to find 
the best way to lock down our services, while still providing access for 
library staff. At this point I think the best way for me to prevent 
exploits like this, while still allowing libraries to use our server as 
a relay for their ILS notices, is by allowing relaying based partly off 
of the "from" address.

If you are using the OPLIN mail server as a relay, and the mail is 
coming from an email address that isn't @oplin.org, I need you to shoot 
either myself, or OPLIN support an email letting us know what address, 
or at least domain the emails are coming from. My thought is that going 
this direction, I can stop the phishing emails, while not requiring 
anyone in the network to reconfigure their ILS setup.

If you have any questions, feel free to contact me.

-- 
Thanks,
    Karl Jendretzky
    Technology Project Manager
    Ohio Public Library Information Network
    jendreka at oplin.org
    (614) 728-1515