I used MFMailComposeViewController to send email.
It always add the email to email queue.
If my email has large attached file, it will take a long time to send out.
Is there a way to make sure email has been sent?
Welcome any comment
Sadly, no, there is no way to make sure the email has actually been sent.
The best you can do is in
mailComposeController:didFinishWithResult:error: in your
MFMailComposeViewControllerDelegate check the result is equal to
MFMailComposeResultSent, and this will tell you the email is queued to be sent.