On Wed, Mar 24, 2010 at 6:39 PM, mike cloaked mike.cloaked@gmail.com wrote:
Well guys, the mystery has resolved itself with the only action by me being an update at the TB end - before doing the tests that were suggested I updated my version of TB - to Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.2pre) Gecko/20100323 Lightning/1.0b2pre Lanikai/3.1b2pre - whereas I had been running earlier versions of TB
However - one fly remains in the ointment!
If wholly within TB you have a mail on the screen and select Message->Forward as-> attachment and then send it, signed, to yourself and receive it back in TB then what I found is that I get the same bad signature problem - so this is a purely Thunderbird issue that I believe has been a bug for a long time - this is an easy test anyone can verify - using HTML mail. Forwarding inline works fine though.
I have not tried this last test with plaintext mail forwarded as attachment - but this is clearly another bug that ought to be resolved by TB developers.