Major features?

[Jeff A. Earickson]

Julian,

The two features that I think are most important:

1) Open source, uses Perl, which is open source.

2) MailScanner stands BEHIND the MTA, not in front of it.  Your
normal MTA gets to listen to port 25, not MailScanner.  So you don't
have to do a major redo of your sendmail.cf file to use MailScanner.
You program does not attempt to mimic an MTA, unlike other things
(MailMonitor at Sophos comes to mind).

The importance of not having to do a major rework of the sendmail.cf
(or have it listen to port 25) just to use MailScanner cannot be
overemphasized.  It enables quick and easy installation of the code.

Your insight of having two copies of the MTA, with MailScanner between
them, was brilliant.

Jeff Earickson
Colby College

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