Signature displayed wrong in New Outlook on Mac

When creating a new e-mail, my signature is displayed in Times New Roman (?) instead of the default font. In the Signature editor, the display is correct. In Sent, the mail is displayed correctly as ...

outlook for mac

LiaBrown
Jul 22, 2026
Because the signature is correct in Sent Items, do not rebuild it yet. Check whether Outlook is composing in a different appearance mode: temporarily set Outlook's appearance to Light and disable any message-background/theme option, then create a new message. If the preview changes while Sent Items remain correct, it is a compose-window rendering defect. Capture that comparison with the Outlook and macOS version for Microsoft support.

LiaBrown

Brass Contributor

Jul 22, 2026

Because the signature is correct in Sent Items, do not rebuild it yet. Check whether Outlook is composing in a different appearance mode: temporarily set Outlook's appearance to Light and disable any message-background/theme option, then create a new message. If the preview changes while Sent Items remain correct, it is a compose-window rendering defect. Capture that comparison with the Outlook and macOS version for Microsoft support.

JGmv
Tin Contributor
Jul 22, 2026
Setting the appearance mode from System to Light and then to System (= Dark) again actually solved the problem. Thank you!

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Signature displayed wrong in New Outlook on Mac