Open Radar

 
Summary:
I'm having intermittent issues with MFMailComposeViewController in production. I can't reproduce it on my device, but I have multiple customers complaining that the mail sending doesn't work. They hear the little "woosh" like the mail has sent but then the recipient never receives the email. It's not in the user's outbox or sent mail and they can sent mail normally from Mail.app.

After sending some beta users an updated version with debugging enabled, it appears that the MFMailComposeViewControllerDelegate is returning no error and a result of MFMailComposeResultSent.

I'm on an iPhone 5S (T-Mobile), but I've seen this happening on:

iPhone 4S (AT&T) iOS 7.1.1 & 7.1.2
iPhone Model A1429 (Verizon) iOS 7.2.1

I also tried moving the mail sending into its own class that I call from my view controller. See attached code.

Steps to Reproduce:
Check if the user can send mail
if ([MFMailComposeViewController canSendMail])

Create the MFMailComposeViewController, set its subject and message. Doesn't matter if you make it html or text.

Present the view controller to the user.

Hit the send button.

Expected Results:
You would hear a "woosh" sound and the message will go to the intended recipient. The mail should also be in the sent email box in Mail.app

Actual Results:
The "woosh" is heard (indicating the email was sent)
The email is never received by the recipient
The mail is not in the Mail.app sent mailbox

The delegate method is called:
- (void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error {
}

error is nil and result is MFMailComposeResultSent

Version:
iOS 7.1.1 & 7.1.2

Notes:


Configuration:
See description above. This is happening on multiple devices running ios 7.1+