…d the new imapMu, mail actions such as Move work without hanging while caching is happening!

…1209 from happening

…tter

…ected EOF error when reading a message sent from Cogent Mail in Cogent Mail, and it was also causing the HTML formatting to not work in Mac Mail; gmail apparently has some automatic tolerance thing that adds the part closing statements for you, which is why it worked there (it even fixed it in the so-called 'Original Message', so I only saw the actual problem when I downloaded the true original message locally)

… labeling instead of more rigid one-to-many mailboxes

…y mailbox selection

…ed by user actions; no-op if already selected