Well, I had a look with qmhandle and couldn't see anything in any of the queues. But it's still there.
To elaborate a little further :
I sent a message to anonymous@localnet - this got read as anonymous@localnet.localnet as I hadn't got the DNS right (still not sure I have but that's another story - it all works....)
So the server sends it to the ISP as it's not a local address (as far as it's concerned), the ISP bounces it to the server, as it can't find the address, and the server then bounces it to the ISP, ad infinitum.
HELP !
Any help greatly appreciated as this is driving me nuts, and filling the admin mailbox with a load of bounce messages. If need be I'll copy the headers for someone to peruse.
B. Rgds
JC