objective-c uiview xcode4 ios4 mfmailcomposeviewcontroller

Has any image size limitation for image send to mail in ios application?

I am new in ios development .Now i am trying to develop an ipad application .In my application sent an image to mail,the image means a uiview and converted to uiimage with the following code and sent to mail

-(void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex

{
UIGraphicsBeginImageContext(intermediateView.frame.size);
[intermediateView.layer renderInContext:UIGraphicsGetCurrentContext()];
UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();


CGRect rt=intermediateView.frame;
NSLog(@"size of intermediate view %@",NSStringFromCGRect(rt));


    if(buttonIndex==1)
    {




       if([MFMailComposeViewController canSendMail]) 
       {

        MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init];
        picker.mailComposeDelegate = self;
        [picker setSubject:@"Image Of Road Accident"];

        //UIImage *roboPic =image;
        NSData *imageData = UIImageJPEGRepresentation(viewImage, 1);
        [picker addAttachmentData:imageData mimeType:@"image/jpg" fileName:@"RobotWithPencil.jpg"];

        NSString *emailBody = @"This  image from my phone!";
        [picker setMessageBody:emailBody isHTML:YES];

        [self presentModalViewController:picker animated:YES];

    }
       else
       {
           NSLog(@"An error occur for our display");
       }
    }

Basically this code work fine.My applications need is to drag and drop images from a menu. If large amount of image add to the UIView ,the image(UIView) can not save to mail (The application will break).