from the quill of Brad Knowles <brad @
com> on scroll
> At 8:49 PM -0400 9/1/1996, Jody Boyd wrote:
> I know of no tools that let you refuse connections based on parts
> of the "body" of the message (including most of what you and I
> consider to be the headers) while the SMTP connection is open.
Ah. Something I've given a bit of thought to lately. We usually will not
install Sendmail as the daemon to which the Internet talks. Too much of a
security risk. So we usually install TIS' fwtk smap/smapd to receive and
pre-process mail from the Internet.
I've thought of numerous enhancements to smap that allow one to setup a
rules based type of processing of incoming mail. The first one I'd like to
implement is to reject mail which doesn't have a valid envelope sender. If
the mail can't be bounced back to the sender (for whatever reason) it won't
even be considered for delivery.
Brian J. Murrell brian @
InterLinx Support Services, Inc. brian @
North Vancouver, B.C. 604 983 UNIX
Platform and Brand Independent UNIX Support - R3.2 - R4 - BSD