[MlMt] Cancel Pending Move

[Zachary Kotlarek]

Mailmate has a pending message move —  I clicked “Junk” on a 
message in Mailmate but it has not yet been moved server-side.

My mail server is rejecting the move of that message for reasons related 
to in-band spam filter training. This makes Mailmate unhappy. But the 
only options it gives me on the “Failed to upload message” dialog 
are “Retry” — which will never work — and “Take Mailbox 
Offline” — which means I can never use my Junk folder again. As a 
workaround I’ve found that simply leaving the dialog open allows me to 
work normally, but clearly that’s not sustainable.

What can I do to make Mailmate stop trying to move the message? I 
don’t care about the message and I’m happy to have it be deleted or 
go back to where it was or whatever; I just need to clear the error in 
Mailmate. Is there a pending-actions cache someplace I can reset?

	Zach