how to block edits in message

Honeybear100 wrote:

Understood. Sometimes word editor will make bogus errors and you send the message without reviewing. It would be nice if the party on the receiving end didn’t see those messages.

I suspect there are technological reasons for that. But, you can let Apple know your thoughts here:

Product Feedback - Apple

It's not clear what you're asking. You can't block someone from editing a text. If you don't want to read the edited version, don't.