How to view unsent messages on iPhone?

"How to view unsent messages on iPhone?: Is there anyway to make an unsent message visible"

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What find of message? Text? eMail? Voicemail?

A. Text Messages:

If you see (i) to the far-right of the message, then it did not go through. There is no draft part of the iMessages app.

B. eMail Messages:

Look in the Draft folder.

C. Voicemail Messages:

There is no draft part of the voicemail. So, if have issues voicemail, contact your Cellular provider.