ANNOUNCE - SURBL filter for netqmail

[Manvendra Bhangui]

surblfilter reads an rfc822 email on stdin and prints it back on stdout.

It extracts URL and checks them against SURBL. surblfilter can be used

as a filter using qmail-qfilter(1) or as a qmail-queue(8) frontend by

setting QMAILQUEUE environment variable to a wrapper

/var/qmail/bin/surblqueue

surbfilter caches the result in /var/qmail/control/cache. qmail-smtpd or

any client thats calls surblfilter needs to have write permission for this

directory.

surbfilter does base64 decoding for base64 encoded text/html, text/plain 

to extract urls.

surblfilter requires two control files level2-tlds and level3-tlds in

/var/qmail/control. The same can be obtained from surbl.org website

http://www.surbl.org/tld/three-level-tlds

http://www.surbl.org/tld/two-level-tlds

surbfilter is a standone program and does not need you to patch qmail-smtpd 

or existing programs. It exits 88 in case it finds a SURBL listed URL. It 

exits 111 for temporary errors. It exits 0 if everyting is fine.

surblfilter has been integrated with my qmail-dkim patch and is avaiable at

https://sourceforge.net/projects/indimail/files/netqmail-addons/qmail-dkim-1.0/

It has been integrated in dkim-netqmail-1.06.patch-1.9.gz. The older patches 

will not have surblfilter

surblfilter is written in C and  built on djb functions and some functions have

been ruthlessly borrowed from qmail surbl interface by Pieter Droogendijk

and the surblhost program at http://surblhost.sourceforge.net/

Let me know if you find it useful or you find a bug

--
Regards Manvendra - http://www.indimail.org