Merge pull request #284 from mcav/smtp-mail-from

Bug 948580 - [B2G][Email] Send "MAIL FROM" in SMTP probe to validate e-mail address. r=asuth
Bug 975298 - [email/backend] intermittent GELAM test failure for POP3 in test_account_bad_password_error
Merge pull request #285 from asutherland/fixtest-pop3-badpwd

Bug 975298 - [email/backend] intermittent GELAM test failure for POP3 in test_account_bad_password_error. r=mcav
Bug 805501 - Support different username / password / credentials for SMTP server from IMAP server. r=asuth
Update test_account_bad_password_error