On Fri, 05 May 2000, you wrote:
> I was not able to make the filter work as-is, I have to edit main.cf:
>
> header_checks = regexp:/etc/postfix/header_checks
> ^^^^^^^
>
> But with this, I was only able to make the first entry work, not the second.
> I tested it by attaching a text file named: "LOVE-LETTER-FOR-YOU.TXT.vbs"
> but it is still being accepted by Postfix.
This Content:.* will work only if the vbs signature was included in the email
header which is what Postfix can scan.
I'm not too sure if the vbs was included as an attachment. Someone in
postfix-users is working on a homebrew which will allow postfix to scan the
message body and corresponding attachments for this kind of signature.
Anyway, one final update from Elias Levy of BUGTRAQ"
"One final update for the day. It seems a couple of variations of the worm
are going around. At least one uses a subject line of "Joke" or "fw: Joke"
and the attachment is called VeryFunny.vbs. "
So try including "Joke" as well in the header checks as well. Note: This will
filter out as well a _LOT_ of useless bandwidth consumption spent by people
forwarding senseless jokes via email \8)
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