Sending email in iPhone - iphone

Question

In my application I have to send feedback to the client's email.
Here is my code,
-(void) send:(id) sender {
[self sendEmailTo:[txtTo text] withSubject:[txtSubject text] withBody:[txtBody text]];
}
-(void) sendEmailTo:(NSString *)to withSubject:(NSString *) subject withBody:(NSString*)body {
NSString *mailString = [NSString stringWithFormat:#"mailto:?to=%#&subject=%#body=%#",
[to stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding],
[subject stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding],
[body stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding]];
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:mailString]];
}
But this does not work. Is it require any type of SMTP setting or something else?
I tried apple's MailComposer sample but it also does not work.
Please help me.

Answer 1

I have posted this here, but for the sake of not clicking again here it is:
You need to include the MessageUI.framework into your project, and inside your header file you need to set the delegate:
#import <MessageUI/MessageUI.h>
#interface RootViewController : UIViewController <MFMailComposeViewControllerDelegate> {
MFMailComposeViewController *email;
}
#property (nonatomic, retain) MFMailComposeViewController *email;
Once you do that, you have a few delegate methods inside your implementation file you need to include (You should check to see the result, but I am trying to keep as little code as needed):
#synthesize email;
- (void) mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error {
[email dismissModalViewControllerAnimated:YES];
}
Wherever you want to use this, you need to initialize and set it up like this:
email = [[MFMailComposeViewController alloc] init];
email.mailComposeDelegate = self;
// Subject
[email setSubject:#"Testing"];
// Optional Attachments
NSData *artwork = UIImagePNGRepresentation([UIImage imageNamed:#"albumart.png"]);
[email addAttachmentData:artwork mimeType:#"image/png" fileName:#"albumart.png"];
// Body
[email setMessageBody:#"This is the body"];
// Present it
[self presentModalViewController:email animated:YES];

Answer 2

Try to use different format:
NSString *mailString = [NSString stringWithFormat:#"mailto:%#?subject=%#&body=%#",
[to stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding],
[subject stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding],
[body stringByAddingPercentEscapesUsingEncoding:NSASCIIStringEncoding]];