How do I assign the e-mail folders (IMAP) in Apple Mail Sierra?

If you have set up your E-Mail address as an IMAP account, you can define in Apple Mail under the setting «Mailbox Behaviors», where it stores the drafts, sent messages, spam messages (Junk E-Mail), and deleted messages.

To view the settings click on «Mail» > «Preferences», then click on «Accounts» and then on «Mailbox Behaviors».

• If you select an IMAP folder on the mail server, the E-Mails are also available if you use your E-Mail account on another computer.
• If you select a local folder, to store your E-Mails on your Mac they are only available on that computer.

The settings displayed depend on your account type.

Mailbox «Drafts»

Select a folder on the mail server or on your Mac to save the E-Mail drafts.

Mailbox «Sent»

Select a folder on the mail server or on your Mac to save your sent E-Mails.

Mailbox «Junk»

Select a folder on the mail server or on your Mac, to save unwanted spam messages.

Mailbox «Trash»

Select a folder on the mail server or on your Mac to save deleted E-Mails.

Mailbox «Archivev

Select a folder on the mail server or on your Mac, to save archived E-Mails.

Where appropriate, you can copy the messages from the current folder to the newly allocated mailboxes, and after that delete the empty and unecessary folder.