Unable to add signatures to Outlook

I am unable to add a signature to emails. 

I know there are two ways to do this (File / Options / Mail / Signatures or within an email by pressing the Signature button).  Neither way works and nothing happens when the Signatures button is pressed. 

Any ideas?  

Thank you for your assistance.

Answer
Answer

Hi Kylie,

May I know which Outlook 365 desktop client version are you using please provide us with the detailed screenshot about this in private message, see About Office: What version of Office am I using?

Make sure that Outlook desktop client are latest updated. See Install Office updates

Please try troubleshoot this issue via opening Outlook desktop client in safe mode.

To start Outlook in safe mode.

1. Choose Start > Run.

2. Type Outlook /safe, and choose OK.

You may also please try Online Repair Office application, please refer to the article to Repair an Office application to check this issue.

Moreover, if the troubleshooting steps above doesn't help, please create new Outlook profile to check this issue. See under Create a new profile

Note: Please do not need to delete the old profile and can refer to it to get the new one set up. Once you have the new profile set up, you should select to “Always use this profile” option.

Your patience and cooperation are highly appreciated. Have a nice day and stay safe!

Best regards,

Shyamal

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* We are happy and always here to help you, and share the Microsoft 365 for business online information with you.

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Last updated April 16, 2025 Views 6,393 Applies to: