My mac mail v 16.0

My mac mail v 16.0 is always needing to rebuild about every 3 days now. I go to library preferences mail and delete all files that have "index" in them. I there a solution to this problem or do/can I download another mail app?

iMac 21.5″ 4K, macOS 13.0

Posted on Jun 9, 2023 9:46 AM

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4 replies

Jun 9, 2023 12:00 PM in response to wenda289

Are you running any system optimizers? Mackeeper and Advanced Mac Cleaner can corrupt those system settings.

You do not want to use anything like that.


Keeping your computer more than 15% free of data, and not overly dependent on the cloud will help optimize its speed.


Reggie Answorth AppDelete can delete unwanted applications.


Don't use more than one mail client at a time on IMAP or Exchange servers. Those will tap into the server and interact as long as they are open.

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Jun 9, 2023 12:12 PM in response to wenda289

It means exactly what it sounds like.


Let's say you have Mac OS Mail App and Outlook looking in on the same account at the same time, that can confuse the account host where to send your mail.


Same if your Mail App is open on your phone simultaneously with your computer.

If you have an iPhone, here's how to close an app on the iPhone:

Quit and reopen an app on iPhone - Apple Support


My mac mail v 16.0

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