"Greetings" -- sendmail block

[Julian Field]

At 08:43 30/10/2002, you wrote:
>Would this also work for blocking the Delivery Status Notifications like
>Read Receipt and similar messages?

Probably, yes.

>Or would this start a war between the linux mail gateway and the exchange
>server resulting in tons of messages bouncing back and forth?

You can send them to $#discard rather than $#error which, if I remember
rightly, will silently throw them away.


>On Fri, 25 Oct 2002, Julian Field wrote:
>
> > In case you want to block this with sendmail, so that it never gets in to
> > your site in the first place, this will do the job in your sendmail.cf
> file:
> >
> > HSubject: $>Check_Subject
> > D{FriendPat}you have an E-Card from
> > D{FriendMsg}This message is probably a nasty E-Card.
> > SCheck_Subject
> > R$* ${FriendPat} $*             $#error $@ 5.7.1 $: ${FriendMsg}
> >
> > Remember that the whitespace before "$#error" has to be tabs and not
> spaces.
> >
> > If you want to expand the list of subjects, just make more pairs of "D"
> > lines to set the patterns and messages, and add a new R line for each one.
> >
> > At 17:18 25/10/2002, you wrote:
> > >At 17:06 25/10/2002, you wrote:
> > >>On Fri, 25 Oct 2002, Julian Field wrote:
> > >> > Would people prefer
> > >> > 1) Replace the content of messages containing "nasty" headers such as
> > >> this,
> > >> > as if it was a virus
> > >> > 2) Just flag is as spam and handle according to the normal "Spam
> Actions"
> > >> > ?
> > >> >
> > >> > I'm writing (1) at the moment, but it just occurred to me that (2)
> > >> might be
> > >> > better.
> > >> >
> > >> > Your votes please...
> > >>
> > >>This is mere speculation and may be impractical, but...
> > >>
> > >>How about making the behaviour (currently a proposed two-list of
> > >>"virus-like" or "spam-like") somehow selectable by the sys.admin.??
> > >
> > >How did I know that someone was about to say that...
> > >:-)
> > >
> > >I'm going to go with the SpamAssassin solution for now, it means less work
> > >for me and I've had a long week. More brandy needed....
> > >--
> > >Julian Field                Teaching Systems Manager
> > >jkf at ecs.soton.ac.uk         Dept. of Electronics & Computer Science
> > >Tel. 023 8059 2817          University of Southampton
> > >                             Southampton SO17 1BJ
> >
> > --
> > Julian Field                Teaching Systems Manager
> > jkf at ecs.soton.ac.uk         Dept. of Electronics & Computer Science
> > Tel. 023 8059 2817          University of Southampton
> >                              Southampton SO17 1BJ
> >
> >
>
>
>--
>This message has been scanned for viruses and
>dangerous content by MailScanner, and is
>believed to be clean.

--
Julian Field                Teaching Systems Manager
jkf at ecs.soton.ac.uk         Dept. of Electronics & Computer Science
Tel. 023 8059 2817          University of Southampton
                             Southampton SO17 1BJ