Apple Mail Error "message --- could not be moved to mailbox

I have had this issue for a while, re-booted as suggested on a similar thread in 2022 but the issue persists. It's very concerning. Please note that this happens only on devices using Big Sure, I am on the previous OS on another iMac and there is no issue there.

Thank you in advance for any help.

Posted on Jun 27, 2023 2:54 AM

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1 reply

John Galt

Level 10

153,862 points

Jun 28, 2023 5:17 AM in response to Maria Romana

The usual fix is to rebuild the affected Mailbox: Rebuild mailboxes in Mail on Mac - Apple Support.

You can rebuild any Mailbox including local "On My Mac", Mailboxes, Inbox, Trash, Sent, etc. I recommend rebuilding all of them.

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Apple Mail Error "message --- could not be moved to mailbox

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