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.