Receiving e-mails (IMAP4)

Troubleshooting — Solving typical problems of e-mail receiving.
Connecting to server — Connecting to the IMAP4 server and logging in the mail account.
Selecting a mailbox — Selecting a mailbox to be examined.
Search for new messages — Locating and downloading new messages.
Select e-mail from list using Unique-ID (UID) — Using Unique-ID's to identify messages.
Downloading the list of messages — Downloading and displaying the list of all of the messages in the mailbox.
Downloading entire message — Downloading entire message.
Deleting & expunging messages — Deleting existing messages and expunging deleted messages from the mailbox.