In article , Martin Brown
writes

Bounces of bounces are prevented by having a null return path to avoid
endless loops.

I'm glad you sent that post!!
We seem to have been put on a porn list at an address which is a mixture
of my work id and our demon id. After this thread I was worried about
ping pong bounces - but you have set my mind at rest
I wish demon had told me the same!!!!
--
Jane Ransom in Lancaster.
I won't respond to private emails that are on topic for urg
but if you need to email me for any other reason, put ransoms
at jandg dot demon dot co dot uk where you see