I asked this on the Spamassassin list, and was advised I would have
better luck with ClamAV. I do have ClamAV running in several setups, but
have never done anything exactly like this.
My typical setup would be Postfix -> Amavisd -> ClamAV.
I work for a healthcare company. I have been asked to implement
something to block all outbound emails that contain patient names. We
have roughly 35,000 names. I need to look for them in the format "John
Smith" and "Smith, John". These would be for outbound emails only. I
would like to bounce them back to the internal sender with a custom
message (I can handle that in Amavisd). I realize this would be a
totally oddball setup, so I have no problem dedicating 1 or 2 servers to it.
We would script an export of patient names from our Patient DB every night.
So, I basically need to know if it would be practical to build a ClamAV
DB file with 70,000+ names to be used to search an email for a match?
If all this is practical, would it be possible to allow for a text
string in the email to flag it so it would be allowed to have one of the
forbidden names in the email? I figured this may be an Amavisd question,
but I don't see an option for anything like that there. I figured I
would try here. We would want users to be able to put a code such as
(override) in the subject to bypass this restriction.
I'm not saying this is the most brilliant idea in the world. It is just
what I have been asked to do.
Any tips would be greatly appreciated.
Thanks,
Matthew
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