How to Turn Off or Disable Auto Spell Check When Sending an Email
Open outlook and click on the “File” tab on the top left-hand corner.
Click on “Options” on the bottom of the left-hand side.
A new window will open. Under the “Mail” tab, uncheck “Always check spelling before sending“.
The annoying, auto correct pop-up window before sending an email is now gone. Auto correction or the “check spelling as you type” is still enabled. Therefore, outlook will still recommend spelling and grammar correction as you type. However, when you send the email, you will no longer get the spell check pop-up window.