App crashing on iTouch

[fontecir]

I received an email from Apple stating my app was crashing on the iTouch when sending emails. Is there a way to simulate the iTouch?

How can I test this?

I'm using the following to send emails:

[[UIApplication sharedApplication] openURL:[NSURL URLWithString: url]];

Where url is the string with the mail content:

NSString *url = [NSString stringWithString: @"mailto:?cc=&subject=Greetings"];

Any help is appreciated.