Port 465 = SSL (tick "Secure"), port 587 = STARTTLS (leave unticked).
Needed to detect replies, auto-replies and bounces, and to show conversations in the Inbox. Checked every 2 minutes.
Shared across all campaigns. A random pause between min and max is applied after every email so sending looks human.
Appended to every email from this mailbox (or placed where you write {{signature}}). Variables work here too.