Hi all
I had this problem - a stuck message in Outbox. But many of the posted solutions didn't work for me:
. Powering off didn't work
. Edit was greyed out so I couldn't delete the message
. Repeated attempts via Airplane Mode didn't work
Here's what did work:
. I deleted the Mail icon
. I went to Appstore and reinstalled it
. I then went to Settings -> Accounts & Passwords. My email account was still listed there. But
when I selected the account and the next page came up I found that the 'Mail' button wasn't green (presumably,
deleting the Mail icon had done this)
. I moved the button to green
. I exited Settings
. I opened my Mail icon - hey presto when my email account appeared, both Outbox and the annoyingly unsent
message it had contained) had vanished. Presumably deleted, as it isn't in the Sent box
Hope this works for someone else...