Thunderbird has a great little spell checker built-in and it’s actually turned on by default. Let’s say for whatever reason, your’s isn’t on and you want to stop embarrassing yourself with your poor spelling. There ‘s a simple fix:
- On a Mac, go to Thunderbird > Preferences; on a PC go to Tools > Options.
- Go to the Composition tab, then the Spelling sub-tab. You have two options for spell checking: “Check spelling before sending” & “Enable spell as you type”. The first one checks the spelling in the email after you hit “Send”, and alerts you to any typos. The second one actually underlines typos with a red squiggily line.
- Just check both of those options (for spelling safety) and you’re good to go!