So far I have tried rebooting the phone, uninstalling and reinstalling the app, reseting the network settings. I'm now unable to send pictures as this red exclamation mark appears whenever I attempt to. This has just started happening and for the life of me I can't work out how to fix it. Thanks for trying to help Original poster. I spent a long time trying to get rid of a red exclamation mark on settings on Facebook Messenger and posted the solution. I posted advice and a solution and am not in need of help with iMessage or anything else. I am really confused here with this comment.
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