Question

I need to work on an application able to send a mail with automatic content (subject/text) that the user shouldn’t be allowed to edit. Is it possible to do ?

Thanks for your advices

Answer 1

The answer is “no”. If you want to use the MFMailComposeViewController class, you have to pay attention to this paragraph in Apple’s documentation:

Important The mail composition interface itself is not customizable
and must not be modified by your application. In addition, after
presenting the interface, your application is not allowed to make
further changes to the email content. The user may still edit the
content using the interface, but programmatic changes are ignored.
Thus, you must set the values of content fields before presenting the
interface.

The user can (and should be able to) change anything and everything s/he wishes before they send out an e-mail.

If you don’t want to follow those rules Apple set, there are other mail frameworks you can use within your iOS app.