works with mailscanner to filter out spam/viruses to/from the list
This should be external to the mailing list. The mailing list should probably have features to allow it to take advantage of any external virus/spam tagging and filtering that you can perform, but the bulk of the work should actually be done in the MTA, or in conjunction with the MTA -- before the message gets to the mailing list software itself.
be secure so that the list cannot be hijacked by spammers
"Secure" is a relative term. If you run a closed list and do not allow postings from non-subscribers, then spammers will either have to subscribe to the list before they can spam, or they will have to forge the address of a subscriber.
Problem is, "viraspam" tools like SoBig.F will generate spam using the mailbox of an infected person as a guide, and they may be able to forge mail from another member (perhaps with an infected attachment) and get it posted to the list.
Just how secure does the list have to be?
As far as everything else is concerned, it seems to me that mailman can do all this, and I believe it's a pretty good tool for doing so.
-- Brad Knowles, <[EMAIL PROTECTED]>
"They that can give up essential liberty to obtain a little temporary
safety deserve neither liberty nor safety."
-Benjamin Franklin, Historical Review of Pennsylvania.GCS/IT d+(-) s:+(++)>: a C++(+++)$ UMBSHI++++$ P+>++ L+ !E-(---) W+++(--) N+ !w--- O- M++ V PS++(+++) PE- Y+(++) PGP>+++ t+(+++) 5++(+++) X++(+++) R+(+++) tv+(+++) b+(++++) DI+(++++) D+(++) G+(++++) e++>++++ h--- r---(+++)* z(+++)
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