Re: [exim] system-filter and outlook

On Mon, 7 Nov 2005, Aram Galestian wrote:

> Im i to restrective to both use System-Filter and Mime ACL to deny
> extentions..

It's dangerous to use the system filter to reject anything: you will
create bounces, some of which will be sent to the innocent owners of
email addresses which have been faked as envelope sender. Rejecting
mail at this point will, sooner or later, get you into blacklists as a
source of "collateral spam" (also known under other names).

The practical options in a system filter are to either deliver the
mail somewhere (to a normal inbox, or to a spam folder for example),
or to freeze it for postmaster inspection.

If you want to reject, safely, then you have to do it in an ACL.

best regards