Paul said:
Using Outlook Spy has been the only way I recall anyone has ever
recommended. Why don't you want to use it?
You certainly don't need Outlook Spy to correct the problem if your delivery
location is a PST. Create a new PST, make it your delivery location, then
transfer all the data in the old PST, except for what's in the Outbox, of
course, to the new PST. Close the old PST and you're done.
--
Brian Tillman
The Read receipts don't exist (at least visibly to me) in the outbox, so I
don't think this would work. My faulty account has started working again
now, so I am not able to test. However my btinternet account does seem to be
getting faulty rather a lot on the SMTP send side, so if the problem occurs
again I will give it a try.