qmail can be configured to keep a copy of all email at compile-time IIRC. As it works with maildirs, it would also be relatively easy to purge mails more than a week old by calling a small cron script. Probably possible with other MTAs too, but I tend to prefer working with qmail. As for the filtering side of things, it really depends on what you are trying to achieve, All the best, Nial (Age: 30, for those who are interested [g]). At 10:08 25/02/2003 +0000, you wrote:

Quick question, does anyone use any Linux software to filter their email? We get quite a lot of email passed through, over 1000 a hour, and it would be nice to use something fairly simple to work between our SMTP feed and Exchange (5.5) Server, preferably (I know it will take a LOT of space) that can store every email passed through, for say a week?

Thanks,

Dug Stokes Senior Webmaster Gilberd IS Department E: dug@gilberd.com W: www.gilberd.com

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I'm using Blackhole (http:/the.groovy.org) to filter about 4 emails per second on an LEA mail system, using qmail (http://cr.yp.to/qmail.html) as the MTA. The ucspi-tcp program (http://cr.yp.to/ucspi-tcp) which handles the tcp connections for qmail comes with a program called recordio which can log all tcp traffic for the mail server. You can keep these logs as long as you like and you capture all the emails along with the smtp commands etc. so you know exactly what people have been trying to do to your mailserver. Cheers -- Phil Driscoll