How to Add Strikethrough Text in macOS Mail

Put a line through any text with just one button click

highlighter striking lines through text

You can add a text strikethrough in macOS Mail by selecting the text and then clicking the strikethrough button. Adding a strikethrough to email text doesn't delete it but instead describes to the recipient(s) that you've changed your mind about that content or that the information is no longer valid.

As when you highlight words, readers can still see what's behind strikethrough text, but you've made clear that the content doesn't carry as much weight as the rest of the text.

Make Text Strikethrough on a Mac

Strike out words, letters, or entire paragraphs using the strikethrough button from the format bar.

  1. Make sure the message you're composing is in rich text mode via Format > Make Rich Text.

    If you see Make Plain Text in the menu, then the message is already in rich text mode.

    Screenshot showing how to convert a message to rich text mode on a Mac
    Jon Fisher
  2. Click the big A button at the top right of the message to show the format bar if it isn't already visible.

  3. Highlight the text you want to strike through.

  4. Click the S button (it's next to B, I, and U) to instantly make a text strikethrough.

    Screenshot showing how to make a text strikethrough in Mac Mail
    Jon Fisher
  5. That's it! You can click the same button to undo the strikethrough, or select other words or letters to add a strikethrough to them also in the same message.

If you've made a text strikethrough for a word at the end of a sentence, and then continue typing after that word, the strikethrough might follow with your new text. To prevent this from happening, toggle the S button off when you're done using it so that any new text is set without the strikethrough.