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Sent from Outlook for Mac" default signature removal

  • May 8, 2025
  • 5 replies
  • 1329 views

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Hey all - is there an easy way to remove this from our macs. Have tried a few scripts which are failing to resolve the issue:

Best answer by sdagley

@skhan619 I haven't tried it personally, but deploying a Configuration Profile setting the value of the DisableDefaultAppSignature key to true for the com.microsoft.Outlook prefs domain should prevent that. See https://learn.microsoft.com/en-us/microsoft-365-apps/mac/preferences-outlook#disable-default-signature for more details, and that document also lists all of the documented configurations options for the Mac version of Outlook.

5 replies

AJPinto
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  • Legendary Contributor
  • May 8, 2025

As far as I am aware no, there is very little you can do to Office with scripts anymore and I am not aware of any user preferences you can set with scripts for Office. I suggest opening a ticket with Microsoft to be sure.


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  • Author
  • New Contributor
  • May 9, 2025

As far as I am aware no, there is very little you can do to Office with scripts anymore and I am not aware of any user preferences you can set with scripts for Office. I suggest opening a ticket with Microsoft to be sure.


Really Jamf doesn’t offer a solution?


JevermannNG
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  • Valued Contributor
  • May 9, 2025

The Outlook Signature is saved to this location:

˘/Library/Group\\ Containers/UBF8T346G9.Office/Outlook/Outlook\\ 15\\ Profiles/Main\\ Profile/Data/Signature/ 


sdagley
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  • Jamf Heroes
  • Answer
  • May 9, 2025

@skhan619 I haven't tried it personally, but deploying a Configuration Profile setting the value of the DisableDefaultAppSignature key to true for the com.microsoft.Outlook prefs domain should prevent that. See https://learn.microsoft.com/en-us/microsoft-365-apps/mac/preferences-outlook#disable-default-signature for more details, and that document also lists all of the documented configurations options for the Mac version of Outlook.


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  • Author
  • New Contributor
  • May 9, 2025

@skhan619 I haven't tried it personally, but deploying a Configuration Profile setting the value of the DisableDefaultAppSignature key to true for the com.microsoft.Outlook prefs domain should prevent that. See https://learn.microsoft.com/en-us/microsoft-365-apps/mac/preferences-outlook#disable-default-signature for more details, and that document also lists all of the documented configurations options for the Mac version of Outlook.


Nice one that fixed it!