[MlMt] auto-BCC the From address fails on one address of three

[Shoshanna Green]

Got it! The problem is definitely new since r5523 (thanks for the link 
to that older version, Benny), and it's connected to the problem account 
having only one name in the "Full Name" field: that is, the account 
looks like "Shoshanna <address at example.com>" rather than "Shoshanna 
Green <address at example.com>".

I tested by editing the account to make it "Shoshanna Test 
<address at example.com>", quit and restarted MailMate, and the BCC address 
updated as it ought to. Edited the account again to remove the fake 
surname, quit and restarted, and it's back to failing.

I hope that narrows it down enough to allow an easy fix!

Shoshanna Green
shoshannag at gmail.com