* Check the SSL certificate's hostname against the hostname we used
  (RFC 3501, section 11.1)

* See if we can add an Evolution data server mailbox backend

* Add an option to display only the mail that is new since the last
  time the mail summary popup was closed

* Allow to customize the double-click action:

	When double-clicked:	(o) Display the Mail Summary
				( ) Display the Properties
				( ) Run a command: [sylpheed         ]

* Allow to monitor multiple IMAP folders per IMAP mailbox

* In the IMAP mailbox properties, add a "Browse" button next to the
  folder entry (it will connect to the IMAP server and retrieve the
  list of folders)
