Some things are messy, Check for updates: no updates although I use 10.1 and not 10.3. Backup, download 10.3 and installed. Result: all rules are gone. So replaced backup: still all my rules are gone, Contacts is also messy. I use Google contacts: clean, no labels nothing. eM adds labels and if I remove them: error: contacts need at least one label, I do not get. Also there is hierchy in contacts which I did not make: first map = google account, 1st submap = all contacts, 2nd submap = contacts.
So: check for updates is not correct, installing new version = all rules are gone, replacing back up = rules are still gone.