Head to Settings on your iPhone and open Accounts & Passwords.If anyone else has access to your phone or you recently changed your email password from a PC, you may need to check the email settings. The issues could lie within your email settings or even your email provider. You’ve made it to this point and your email is still stuck or you can’t seem to send it out. Once the email has been deleted (or if lucky, sent) you can take the iPhone off of Airplane Mode. If able to enter “Outbox”, you should notice that the Edit button is no longer grayed out which means you can now use it (or the swipe left method) to delete the email message.If you no longer see an “Outbox” option, this means that your email has already been sent successfully. Once the phone is on, launch the Mail app and head to the outbox that is causing issues.Slide to turn off the phone and wait approximately 15 seconds before turning the phone back on.Once in Airplane Mode, turn your phone off normally by holding down the on/off button until the slider pops up.While your phone is on, head to Settings and toggle your phone into Airplane Mode.You aren’t able to swipe left and the Edit button is grayed out. Tap the email account that you want to remove.This option is for one of those rare occurrences where you find that not only is the email stuck but you’re unable to delete it from your outbox.On your iOS device, go to Settings > Accounts & Passwords.Make sure that all of your email is there or make sure that your email is saved somewhere other than your iOS device. On your computer, sign in to your email provider’s website.Remove your email account and set it up again If you can’t send or receive emails on your iPhone, iPad, or iPod touch - If they're still stuck in the Outbox, remove the account and set it up again. If successful, turn off Airplane Mode and see if you're able to send an email to yourself.

Open the Mail application, and see if you're able to delete the emails in the Outbox. This should allow you to delete the emails. Use Airplane Mode on your iPhone, iPad, iPod touch, and Apple Watch - If the emails are still located in the Outbox, turn on Airplane Mode. Once it's returned to the Home screen, test the issue. How to force an app to close on your iPhone, iPad, or iPod touch - First, force close Mail application if it's open, then - Restart your iPhone, iPad, or iPod touch - Restart your iPad. This is blocking your ability to send an email, and I'm happy to help. I see that you have a few emails stuck in the Outbox in the Mail application on your iPad Air.

Iphone emails getting stuck in outbox