Mail: Destination mailbox (null) does not allow messages to be moved to it

Hi JavaP

Assuming you're using IMAP:
Go to Mail.app > Preferences > Accounts.
Choose the mail account having problems.
Switch to the tab mailbox behaviour.
Disable the checkbox "Store deleted messages on the server".

If that doesn't help, revert these steps.
Choose your Trash mailbox.
In the Mail.app menu > Mailbox > Use this mailbox for > Trash

If that didn't help either, please provide some info on the account in question.

Regards
--greg

Hi Madconqueror. I was having the same problem and the solution you posted here worked for me. Thanks for the help. 🙂

Message was edited by: garybc

Me too! Thanks!

Greg! you rule!, you saved me lot's of hours wondering how to solve it.

You rock. I've been trying to solve this problem forever. Thanks a million!

Jon

Tried the first option and that didn't work.

On my IMAP Gmail account the "Use this mailbox for" options are grayed out. Can't figure it out.