IMAP component

IMAP - folders

IMAP - Gmail

Gmail and OAuth 2.0

Office 365 / Exchange Online

Office 365 / Exchange Online / Outlook.com and OAuth 2.0

POP3 component

POP3 - Gmail

SMTP component

Message Delivery Notifications (MDNs)

SMIME and DKIM (signing, validation, encryption, decryption)

iCalendar, vCalendar, vCard

Videos

Other tools

Common

Most common problems

Reporting problems