Blocking Delivery Status Notifications?

[Remco Barendse]

Hmmm I now even get bounced messages from spammers that
request a delivery notification in their e-mails but then reject receiving
it...

Anyone having problems with DSN's or is it simply something that is
allowed on most sites?


   ----- The following addresses had permanent fatal errors -----
<rosana.cusnir at tecnipublicaciones.com>
    (reason: 550 Sorry, this server is configured to refuse this sort of
mail (to combat the SPAM problem))

On Tue, 15 Oct 2002, Remco Barendse wrote:

> Was thinking to put several phrases / bits of text from udesireable /
> unwanted DSN e-mail replies into strings that we could put in a config
> file. Then have mailscanner check every e-mail for these strings and
> silently drop every e-mail with that text in it if the mail originates
> from the domains in our localdomains list (like MS can do with
> viruses).
>
> To put it simple : check every e-mail for text lines that would appear in
> DSN reply messages from our local domain and silently drop them?
>
> This way 'good' DSN replies would be allowed through as well as incoming
> DSN messages for failed e-mail messages but sensitive / private
> information and replies spammers would like to have would be blocked.
>
>
> On Tue, 15 Oct 2002, Julian Field wrote:
>
> > At 12:33 15/10/2002, you wrote:
> > >Would it be possible to make the text of these DSN messages a string that
> > >can be included sort of in a 'virus messages to be silently dropped' way
> > >if it isn't possible to mess about with the DSN status in the
> > >message headers?
> > >This way (in this case Exchange) would still generate these 3 types DSN's
> > >but they would never get delivered :)
> >
> > Not quite sure what you mean. Can you give an example or two?
> > --
> > 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
> >
> >
>
>