DarkDragon : Cc/Thunderbird

  1. Import CA certificate before finishing mailbox setup.
  2. Account settings:
    1. Incoming: IMAP, mxs.ccenter.lan, Auto, SSL/TLS
    2. Outgoing: SMTP, mxs.ccenter.lan, 587, STARTTLS
  3. After setting up the account, check folder subscription settings. Unsubscribe anything unwanted.
  4. Disable Archiving.
  5. Set Drafts to save in OUTBOX.