[gentoo-user] OT: Any interest in a postfix/milter bridge?

[Dave Nebinger]

I'm currently running postfix as my mail system.  Unlike a recent post which 
assumed that postfix was overkill compared to sendmail, I tend to feel the 
opposite, that sendmail is bloated much more than the more simplified 
postfix.

However, when looking for spam blockers, virus checkers, and other message 
processors, you will typically find multiple sendmail milter implementations 
as opposed to the postfix filter implementation.

Having investigated the milter API and having constructed some milters 
myself, I currently believe that it should be possible to build a 
postfix-milter bridge.

The milter side of the bridge would support the milter api for compiling 
sendmail milter-based filters.

The postfix side would simply need to wrap a simple smtpd/smtp process that:

a) receives mail on the smtpd side.
b) pushes the mail through the milter via the bridge api.
c) sends the output of the milter back into postfix via the smtp side.

Obviously there are some timing issues, etc., to deal with as well as 
whatever implications there are re: providing a milter-like API for postfix, 
etc.

But assuming these could be resolved, is there general interest in such a 
beast?  Or am I the only one wishing I could integrate tools like MIMEDefang 
into my postfix email system?

I would estimate the building of such a tool to take about 200 hours by 
leveraging existing smtpd/smtp open source code, and am happy to invest that 
time if there is some apparent interest in the community for such a tool. 
I'm just a little leary of investing that amount of my time if there is no 
real interest in it, just as I would not be willing to invest my time in 
restoring a Pinto ;-)

Dave

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