Android Version: 2.2 (2.10.405.2) Network: Orange, CPW unbranded handset Taskiller Used: Previously ATK - now none. Issue: I have two Gmail accounts setup on my phone, both of which use Google Apps, so the addresses are blah (at) example1.com and blah (at) example2.com as opposed to ending in gmail.com. I use my first account to sync my contacts, calendar and mail, and my secondary account just syncs mail. I then added an old email@example.com account for no particular reason and now it won't let me delete it and gives this reason: "This account is required by some applications. You can only remove it by resetting the phone to factory defaults..." When I first added the account, by default it didn't turn on mail sync. I have left that unchecked, and also left contacts and calendar sync unchecked. Therefore, this account hasn't yet interacted with any apps/programs. Is the reason I can't delete this @gmail.com account because Android recognises it as a 'proper' Gmail address? I have searched for similar threads, but ultimately the discussions there seem to focus on different problems. I appreciate any help anyone could offer.