Tiago Costa


Internet entrepreneur, kitesurfer and triathlete (Ironman Finisher). Founder of WayNext – digital agency and other companies. Blogging for myself, this is not the agency voice. Welcome!

Fixing Mail.App on El Capitan OS X 10.11 for lost messages

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This is a very quick post, but I think it can be useful for anyone with the same problem.

After properly backing up my Mac using Time Machine I went through with El Capitan / OS X 10.11 upgrade. After a little less than 30 minutes the laptop was up and running again but to my surprise, as soon as I launched Mail.App it started doing some database file migration.

A couple of minutes went by and when Mail.App finally loaded all the emails on my Inbox had simply disappeared. Since I didn’t feel like going through the backup restore process I quickly found that using the Rebuild option for the Mailboxes would do the trick. So if you are stuck like I was just do the following:

1. Launch Mail.App
2. Mailbox > Take All Accounts Offline
3. Select the folder where the messages are missing and click Mailbox > Rebuild

That should do the trick and save a little time from messing with messages restore from Time Machine.

Author: Tiago Costa

Internet entrepreneur, Ironman Finisher and kitesurfer. Founder of WayNext – web agency and other companies. Blogging for myself, this is not the agency voice.

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