Re: [exim] [OT] How not to filter email

On 4/22/2010 8:37 PM, Ted Cooper wrote:

> Unfortunately, it's very hard to tell the difference between a
> callout and a bounce at rcpt time.

If you do still get a lot of backscatter (I've not seen much these days,
admins do seem to be getting a clue), you should look into BATV signing
your outgoing messages. Then it is very easy to differentiate between a
callout/valid bounce, and forged backscatter.

--
Chris