3 steps to disable iMessage and not lose your mind
On a Mac, this is done in the Messages app. With Messages open, click on Messages in the menu bar followed by Preferences. Select the Accounts tab, then select your iMessage account. Next, click on the check box next to your phone number to remove it from the device. (You may need to enable one of the email addresses attached to your account before you can remove your phone number.) Finally, click on the check box next to Enable this account to remove the check mark and disable your iMessage account on your Mac.
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