Question

Instead of using a default body with @”” is it possible to load the body from 1 or 2 UITextFields

Answer 1

Sure, you set any string value to mail message body, e.g.:

MFMailComposeViewController* mailComposer = ... //Create and setup controller
NSString *messageBody = [NSString stringWithFormat:@"Text from first field:%@\nText from first field: %@", firstField.text, secondTextField.text];
[mailComposer setMessageBody:messageBody isHTML:NO];

passing YES to 2nd parameter also allows you to format your message using html tags.