Outlook 365 : Signature forced by registry not working anymore since last version of Outlook 365

Julian 5 Reputation points


in our company we force to use specific signature generate by a script. To force it we add 2 regkey in HKEY_CURRENT_USER\SOFTWARE\Microsoft\Office\16.0\Common\MailSettings with 2 news value NewSignature and ReplySignature but it's not working anymoren, the signature seems selected in the signature menu (it's greyed out with signature name but it's not loaded when you click on "New message" as before in the old version (2019 and old version of 365). I think the issue coming after last update of office.

2023-07-19 09_20_46-Remote Desktop Manager [PC0131 - jcs-t]

2023-07-19 09_20_10-Remote Desktop Manager [PC0131 - jcs-t]

if i remove key from registry, it's working.

Thank you !

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Formerly Office 365, is a line of subscription services offered by Microsoft which adds to and includes the Microsoft Office product line.
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  1. ChristyZhang-MSFT 19,211 Reputation points Microsoft Vendor

    Hi @Julian ,

    Welcome to our forum!

    if i remove key from registry, it's working.

    I understand that the signature can work normally when you remove the registry key, what are your concerns?

    in our company we force to use specific signature generate by a script.

    Do you mean that you want to make the specific signature as default signature when you send/reply a email?

    If so, as i know, we can do that directly in Outlook desktop client, just refer to the below image. It's suggested that you could try it.


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