IPhone – Can you change your email name without making a new account

Focus on iTunes billing support. When you need support on a device and the software support window is over, you pay for that help.

iTunes billing support is generally free since you can't spend more money in the store without a working account. You always have to get a support person to call you since people that have access to the store accounts are a very limited subset of all the support personnel.

Just be persistent - keep good notes, provide a phone number where they can reach you and have all the details of the account you can muster ready. Things like purchase history, credit card bills so you can tell the person the last two or three purchases made from that account in terms of date, transaction number and amount.

Once you've gotten the password reset, you can go back and fix all the security questions at https://appleid.apple.com

Worst case, you can add a new email address to the account, verify it, and then see if you can send a security question reset after that email is verified by Apple and in use for a week or so. Also - make more purchases from that account (free apps are fine) to show that the device that was registered to that account is still in use and still associated with the account even though the email address on file is new.

Sure, You could use the iPhone Configuration Utility or Apple Configurator to create a profile for the server settings.

Once you've gotten a signed profile document (it can be self signed if you haven't set up trusted SSL certs, etc…) you can email it or post it to dropbox or otherwise put it on a web server for each device to retrieve.

The users would tap the file to download it and then tap to accept the payload. You could leave the account blank so each user would just have to enter an account/password and the profile would have the details on the mail server and settings to be installed.

Start with the deployment page at Apple and scroll down to the Configure section to read more on MDM and Configurator.

http://www.apple.com/iphone/business/it-center/deployment.html

Reading into your settings, you might also consider using directory services or a single sign on solution to pull a person't correct email account from a central directory, but that might cost more than a one time, touch all 50 devices exercise. In the end, you might pay for automation software since it allows better reporting and flexibility as changes like these tend to come more and more often in most businesses.