I am using MFMailComposeViewController in my application to compose a feedback E-Mail. The MFMailComposeViewController gets displayed, but can't be closed.
Method used to open the MFMailComposeViewController modal window:
-(IBAction) feedbackBtnClicked:(id)sender {
    // Dismiss the Old View Controller
    [self dismissViewControllerAnimated:NO completion:NULL];
    // Present the New View Controller
    if ([MFMailComposeViewController canSendMail])
    {
        MFMailComposeViewController *mail = [[MFMailComposeViewController alloc] init];
        mail.mailComposeDelegate = self;
        [mail setSubject:@"Sample Subject"];
        [mail setMessageBody:@"Here is some main text in the email!" isHTML:NO];
        [mail setToRecipients:@[@"example@mail.com"]];
        [self presentViewController:mail animated:YES completion:NULL];
    }
    else
    {
        NSLog(@"This device cannot send email");
    }
}
Here is what happens, when clicking on the buttons:
Senden (Send) - The E-Mail gets sent, but the modal window stays open; clicking on that button multiple times results in sending multiple E-Mails without the modal window ever getting closed. Abbrechen (Cancel) - Nothing happens
How to dismiss make sure the MFMailComposeViewController gets dismissed after clicking on those buttons?
