Individual whitelists

[Julian Field]

The code in CustomConfig.pm will work very fast for large numbers of
different white/black lists.
It reads the whole of the lists into memory at the start (and every few
hours after that), and then reads them straight from memory as it goes along.
If the individual lists get large, you may want to combine it with the
high-speed ruleset processing code in there too. You can use this if you
know what every entry in each white/black list is going to be an exact
email address or a domain name. If that is the case then a fast lookup can
be done for each message, rather than having to process the whole list one
entry at a time, which is what you have to do in the general case.

One of these days I will try to write an optimiser for the configuration
compiler, but it's not easy.

At 17:35 25/05/2004, you wrote:
>I'm considering trying this but I'm wondering what the overall performance
>impact would be.  We have over 5900 users right now; if even 1/5 of them
>want personal black/whitelisting ability, won't that really bog the
>MailScanner processes down?
>
>Don Newcomer
>Senior Manager, Systems
>Infrastructure Systems Department
>Library and Information Services
>Dickinson College
>P.O. Box 1773
>Carlisle, PA  17013
>717-245-1256 (Voice)
>717-245-1690 (FAX)
>newcomer at dickinson.edu
>
>On Thu, 8 Apr 2004, Julian Field wrote:
>
> > At 22:00 08/04/2004, you wrote:
> > >I am wandering if there was anyway that I could setup individual
> whitelists?
> >
> > Take a look in CustomConfig.pm. There is some code in there which
> > implements all this for you. Per-domain and per-user black and white lists.
> > The code is dead easy to use, just follow the instructions in the comments
> > at the start of that section of the file.
> >
> > >
> > >Or at least say that I want mail from <mailto:*@domain.com>*@domain.com to
> > >go to <mailto:user1 at domain2.com>user1 at domain2.com but
> > ><mailto:user2 at domain2.com>user2 at domain2.com doesn't want this message.  I
> > >am using spam.whitelist.rules to globally whitelist addresses but I would
> > >rather whitelist them for individual users.
> > >
> > >Dan
> > >
> > >
> > >
> > >
> >
> > --
> > Julian Field
> > www.MailScanner.info
> > Professional Support Services at www.MailScanner.biz
> > MailScanner thanks transtec Computers for their support
> > PGP footprint: EE81 D763 3DB0 0BFD E1DC 7222 11F6 5947 1415 B654
> >
>
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--
Julian Field
www.MailScanner.info
Professional Support Services at www.MailScanner.biz
MailScanner thanks transtec Computers for their support
PGP footprint: EE81 D763 3DB0 0BFD E1DC 7222 11F6 5947 1415 B654

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