[Evolution] 8/5 snapshot: one dead account blocks another's outbounds

[Kenneth Porter <shiva well com>]

I've now got 3 messages in my outbox, 2 waiting for a SMTP server to
come back up, and one to go to a known-up SMTP server. It apppears that
the failure of the first server prevents evo from processing pending
outbox entries for other servers. This message goes through a 3rd
server, and I'm expecting it to also get queued in the outbox and not
sent because of the unrelated downed server.