> Outlook does support @font-face declarations (but doesn’t load distant fonts). Because Outlook can’t display that font, it falls back to its expected mso-gene

> Outlook does support @font-face declarations (but doesn’t load distant fonts). Because Outlook can’t display that font, it falls back to its expected mso-generic-font-family value. And because it’s not defined, it falls back to its auto value, matching the roman font family, thus falling back to Times New Roman. It also seems that mso-font-alt can be used in a similar way: https://litmus.com/community/discussions/36-outlook-and-fallback-fonts#comment-2459 https://litmus.com/community/discussions/36-outlook-and-fall... And there are many more mso-prefixed options available, though documentation is scarce: https://litmus.com/community/learning/8-outlook-overview https://litmus.com/community/learning/8-outlook-overview Generally it seems like this isn't very well known. Hopefully this gets a signal boost and best-practices articles get updated with the advice.