How do I stop this???

[Ugo Bellavance]

Sorry, my fingers hit ctrl-enter before ctrl-v

>-----Message d'origine-----
>De : Gerry Doris [mailto:gdoris at ROGERS.COM]
>Envoyé : 27 mars, 2004 15:47
>À : MAILSCANNER at JISCMAIL.AC.UK
>Objet : Re: How do I stop this???
>
>
>On Sat, 27 Mar 2004, Ugo Bellavance wrote:
>
>> >-----Message d'origine-----
>> >De : Gerry Doris [mailto:gdoris at ROGERS.COM]
>> >Envoyé : 27 mars, 2004 13:37
>> >À : MAILSCANNER at JISCMAIL.AC.UK
>> >Objet : Re: How do I stop this???
>> >
>> >
>> >On Sat, 27 Mar 2004, Stephen Swaney wrote:
>> >
>> >> Gerry,
>> >>
>> >> What was the entry you put in your access maps.
>> >>
>> >> Did you  remake the access.db after changing the access map?
>> >>
>> >> Steve
>> >
>> >I've ended up putting all of the following lines in /etc/mail/access
>> >
>> >spinfinder.com                  DISCARD
>> >64.227.180.130                  DISCARD
>> >dayzersagency?@spinfinder.com   DISCARD
>> >
>> >and then running
>> >
>> >makemap hash access < access
>> 
>> Are you sure your db is named access?  mine is called accessdb
>
>Yes, my access database file is called access.db.  That's what it is 
>called in sendmail.mc and it works for the other addresses 
>that I've put 
>in it.

The makemap command should then be 

makemap hash accessdb < access

>
>I'm curious as to the best way to stop such a problem.  I 
>believe what I'm
>experiencing is the result of a misconfig and I've sent a 
>message to the
>postmaster of the domain.  However, how would you prevent a 
>DoS attack if
>someone tried to fire off as many messages as possible from multiple
>systems using non-printable characters in the sending address. 
> It seems
>like there isn't a way to avoid sendmail trying to process the 
>email and
>generating error messages.
>
>Gerry
>