The recent discussion on GreyListing made me think that this is something that
I should really to: take it out of the box marked ''do later''.
I looked at the various implementations suggested for Exim and did not like
any of them and so wrote one that is:
* smaller in terms of exim.conf
* uses an sql procedure - should be faster
I have written it up at the URL below, I have put this up on a test machine and it seems
to work.
I would be grateful if this was looked at by the collected wisdom of the various readers of this list.
I have marked it beta, I will make changes if you can see bugs or think that the documentation
is not good enough.
http://www.phcomp.co.uk/TechTutorial/HOWTOs/GreyListing.php
Notes for discussion:
* It stores sending-domain & IP address of sender.
If a site sends from many MTAs it will be greylisted many times.
The alternative would be to record then entire sender address (boo@???),
however I do see spam that supposedly originates from the machine that it
is being sent to -- so not a good idea.
Regards
--
Alain Williams
Linux/GNU Consultant - Mail systems, Web sites, Networking, Programmer, IT Lecturer.
+44 (0) 787 668 0256
http://www.phcomp.co.uk/
Parliament Hill Computers Ltd. Registration Information:
http://www.phcomp.co.uk/contact.php
Past chairman of UKUUG:
http://www.ukuug.org/
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