# Apple Mail Crashes on startup

If Apple’s mail app crashes on startup, then force a rebuild of its database by removing this file and any other files with the same prefix :

`/Users/<username>/Library/Mail/V2/MailData/Envelope Index`

There may be multiple Envelope Index temp files present. This delete command will remove all of them.

`rm -f ~/Library/Mail/V2/MailData/Envelope\ Index*`