When configuring an email account for a device, the form disallow commas in the "email address" field. This is problematic when configuring aliases for the email account.

The syntax used in iOS configuration profiles is a list of adresses separated by commas. I did not find any official documentation on this, but this is supported by profiles created within Apple Configurator 2, and it used to work for us with AirWatch.

For example, allowing such values as :

[email protected], [email protected]

would solve the problem.