Have You Had Error Code 80c805e2 Email Sync Issues on Windows Phone?
If the error code 80C805E2 means nothing to you, you probably don’t use a Windows Phone. I’ve seen it crop up twice, with two different email addresses, and the fixes have been different for both. For my GMail, I had to delete and re-add the whole account; for Outlook, I had to wait for a text message backup to complete.