MacOS – Archived mail keeps reappearing in Inbox on OS X

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I have a problem with Mail in OS X El Capitan (10.11.5).
If I archive messages from my Inbox, go to another folder, then back to my Inbox, the messages are there again.
Quitting mail and starting it again doesn't solve this..
I rebuilt the mail database by deleting the Envelope Index files from /Users//Library/Mail/V3/MailData/, but that didn't solve the problem either.

Any suggestions?

Thanks, Richard

ps I know there's a comparable thread on this forum, but it's specifically about Mail on the iPhone and Gmail.

Best Answer

Archived mail keeps reappearing in Inbox …

Smells of a database inconsistency.

I rebuilt the mail database by deleting the Envelope Index files from /Users//Library/Mail/V3/MailData/

Critically:

  • did you quit Mail – and allow time for completion of that quit – before those deletions?

Some of the many articles about Envelope Index lack that recommendation. Here's one of the better articles: SpamSieve Manual: How can I rebuild Apple Mail’s database?

Cross reference

My reply to a MacRumors Forums topic that appears to involve a database inconsistency.

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