Why does my iPad 2 version 7.1.2 show mail usage 1.4 GB when I have only four emails in all boxes? I have erased all mail from my computer mailboxes also...
- If you start the Mail.app, you get a list of Shortcuts (in the upper left corner)
- Below that you should see a list of your accounts. If you click on one of your accounts, you get a list of all your Folders/Mailboxes (i hope i translated it correctly).
- Check if the Trash-Folder is empty or if there are still Mails marked for deletion.
- Repeat that for all your Mailaccounts and check other Folders like the 'Draft'-Folder too.
Alternative Option: If you have all Mail-Account Credentials, delete all Accounts and re-create them. Perhaps that will change the Usage. Please check before re-creating them.