On July 8, 2003 at 20:23 jrk(_at_)merseymail(_dot_)com (Jon Kyme) wrote:
> You mean not accepting connections from some host drives them to
> hammer on your firewall?
> I think that this is a truly exceptional situation.
The term of art is "requeue & retry", which would be the standard
behavior of every MTA I've ever worked with upon connection failure.
I'm not familiar with the details of retry handling of any MTA except exim,
which manages retries per domain (or per target host). I gather from what
you say that the usual behaviour (for most MTA that bother you) is per
message.
Put 10,000 spam msgs headed for your host on some server and even 30
minute retry times don't help much, they get to the end of the list
and they're ready to start again with the first one which failed.
For which exceptions
should clearly be made. I'm surprised that you manage to conserve
resource
> by accepting these connections and blackholing the messages.
So what sort of bandwidth saving do you make by doing this?
--
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