[Mimedefang] Group enabling List.

Albert E. Whale aewhale at abs-comptech.com
Fri Dec 21 12:10:24 EST 2001

While I am running sendmail 8.12.1, I am also a subscriber of the Bad Idea tm.
(gotta love that tm!).

Thanks David for the references as well.  Maybe the PDB will be able to
understand the articles.  Btw, I am the Email administrator (and the reason
that the ISP exists in the first place), I set the policy, but I generally
attempt to accommodate 'reasonable' requests.  This obviously is not one of


Happy Holidays to all on the MIME Defang Mailing List!

"David F. Skoll" wrote:

> On Fri, 21 Dec 2001, Albert E. Whale wrote:
> > I have recently been requested NOT to scan the Email of a specific user,
> > as they have Norton Anti-Virus 2001!
> Does the person who asked this have the authority to set e-mail
> scanning policy?  If not, I would ignore the request.  If so, I would
> try to reason with the requestor and explain the dangers of not
> scanning mail on the server.  If that person insists, then you have a
> very difficult job -- you are charged with responsibility for securing
> e-mail without being given adequate powers to do so.  You may point
> out some articles I have written:
> http://www.roaringpenguin.com/mimedefang/challenges/seriously.html
> http://www.monitor.ca/monitor/issues/vol6iss11/guest.html#3
> > That being said, I want to develop a list of Users (or PDBs) that do not
> > want to have their Email Scanned for Viruses.  If that is what they
> > want, I'm inclined to let ALL Of the Viruses in.
> This is hard to do, because let's say A wants his e-mail scanned and B
> does not.  If a *single* message comes in for both A and B, you can either
> scan for both or scan for neither.  If you want to split the message, you
> have to write code similar to stream_by_domain which streams by recipient
> instead.  This is CPU-intensive and a Bad Idea(tm) in general.
> > I know that there was a discussion some time ago regarding the scanning
> > of Mail for Domains, how (or where) would I include a Look up (in the
> > multiplexed clients) for exclusion of various Users from Email Scanning?
> See the code for stream_by_domain().  You have to write code which goes
> through @Recipients, and if there is more than one recipient, resends
> the message individually to each recipient, and then discards the original
> message.  DO NOT do this UNLESS you are running Sendmail 8.12!!!
> Regards,
> David.
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Albert E. Whale - http://www.abs-comptech.com/aewhale.html
ABS Computer Technology, Inc. - ESM, Computer & Networking Specialists
Sr. Network, OpenView and Systems Consultant

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