Bug#348046: exim4-daemon-heavy: TLS delivery attempts fail with: (gnutls_handshake): A TLS packet with unexpected length was received.

[Simon Josefsson]

Hi Marc!  I'm trying to help with debugging this problem.  Can you still
reproduce the problem, or has it disappeared?  You reported it over a
year ago...

What I don't fully understand is whether your problem is between
Thunderbird and Exim4+GnuTLS or between Exim4+GnuTLS and the remote
server?

Could you quote the exact exim4 log messages when this happens?  I
couldn't find them in the bug report.

If the problem is between thunderbird and exim4+gnutls, what would help
to debug this would be if you could run gnutls-serv with --debug and try
to reproduce the problem.  But let's see if the above questions resolve
this bug differently first.

Thanks,
Simon