Features by mail server protocol

This section explain the features supported by Gmail Atom, IMAP and POP.

For Gmail, both Atom and IMAP are supported. Read more about Gmail Atom, IMAP and how to activate IMAP for Gmail.

Microsoft Outlook.com only supports POP. Yahoo! Mail supports IMAP.

Feature matrix

The following table gives an overview of the supported features of each mail server protocol.

	Gmail Atom	Gmail IMAP	IMAP	POP
Use without manual activation		IMAP must be activated in Gmail settings	Depends on mail server provider	Depends on mail server provider
Fast and lightweight
Automatic sign in and direct mail links
Mark mail as read				Not synchronized with server
Mark mail as spam
Archive mail
Delete mail
Reply all
Preview & save attachments
View complete mail content	Summary only
View all unread mail	Only the 20 latest
View read mail
Upload and send using Gmail composer	Message only, no attachments