How can I get rid of duplicate Sent, Draft, and Trash folders in my IMAP accounts?
- Set Mail to use your operator’s folders by opening them and selecting Mailbox>Use this mailbox for>[folder function].
- Move all messages from old folders to the new ones
- Delete the old, now empty folders.
This has to do with the IMAP severs. Some folders can be visible, others hidden.
A program like Mail.app shows all folder that it see by default. If you want to hide some, you need to hide them in the preferences of the email provider.
E.g.:
I've got a Gmail account. By default in Gmail the folders/labels sent, marked, trash... etc. are shown. Unlike Mail.app, Google mail has an option to disable these in Gmail.
On the other hand, Mail.app adds the Junk-E-Mail folder/label. I disabled the Junk-E-Mail option in the App and deleted the folder, since Google's spam filter is more reliable for my taste.
Solution for Gmail
Before:
After:
