My Thanks to all who replied to my original question.
RTFM Many Thanks for the detaile reply and the time taken to construct it. Some of it went over my head I have to say
but a lot did register. To answer your question, the message I get reads
ISP:B2 AOL is not currently accepting emails from your point of origin through your ISP. Contact your ISP ( followed by a selection of codes I assume which vary from message to message) but no mention of the point you raised---as you surmised.
The situation remains the same today, so I assume we all have to wait until the issue / feuding is resolved
As for the BT / Yahell link up, well until Yahell appeared, the BT service was actually improving.
However, since then Yahoo seem to have induced the equivalent of C.F.I.T at Vne with regard to the service standards
Any further info. is appreciated re the original question.
Many Thanks,
K n C