LOL, sorry for being now a smarty, as the bug obviously occurs when cancelling messages while they are being sent - why not just stop cancelling messages while they are being sent, i.e. only hit send when you are sure about it? You might want to change the option then to not instantly send messages - messages will collect in the outbox until you manually trigger it (that is how I do it 'cmd+-' will send waiting messages).
of course this is not the final fix, but I am sure it is much faster than manually resetting send statuses of many many messages at a later point or other gray hair growing workarounds... ---marlyse -------------------------former messages quotes:------------------------- >Step #1: Reply to/redirect an email which was received with headers >similar to the above. During the send "cancel" it. >Step #2: Now send another email. Notice now no emails are sending out of >the system.. > >I can't debug this further because I can't figure out how to manually add >headers to an outgoing email -- is it possible?...

