[NTLUG:Discuss] Configure sendmail not to send delivery failure notices

[David A Venable]

If the spammer is consistantly sending mail to the same username on your 
box, you could setup an alias for that user to /dev/null. The other option 
is to setup a special routing for notaspam at yahoo.com to go nowhere. The 
option for the alias for the user that the spammer is attempting to send 
to would make the most sense as it would require the least work for the 
server (Only one SMTP transaction per spam instead of the current 
situation). You didn't say if the spammer was coming from networks that 
could be blocked by RBL's. If they are, then it's something that should be 
implemented.

Dave

On 21 May 2003, Tom Woody wrote:

> Is it possible to configure sendmail not to send delivery notices to
> certain domains?
> 
> For example, some spammer sends to joe at mydomain.com and has the return
> address as notaspam at yahoo.com.
> Well joe at mydomain.com doesn't exist, so sendmail being the helpful MTA
> that it is, sends a delivery failure report to notaspam at yahoo.com.
> Then Yahoo, with the helpful MTA that they have, sends a Delivery
> Failure to postmaster at mydomain.com.
> 
> What I am looking for is a way to turn off the delivery failure messages
> for either a specific domain, or if thats not possible, then turn them
> off entirely.  As the postmaster, I get tons of these every day and
> would love for them to stop.
> 
> Thanks,
> 
>