How to Fix Outlook Signature Not Showing for Additional Email Accounts
Question details
The user needs to configure Microsoft Outlook so that their email signature automatically appears when composing messages from a secondary email account.

- Product
- Microsoft Outlook
- Device & OS
- not provided
- Scenario
- Composing new emails or replying from an additional email account added to Microsoft Outlook.
- Observed behavior
- The signature works perfectly for the primary Outlook.com address but fails to appear automatically when using the additional email account.
Ensure that your additional email account is successfully connected and syncing in Outlook, and have your desired signature text or logo ready just in case you need to recreate it.
Assign the Default Signature to the Secondary Account
The most common reason a signature doesn't appear is that it hasn't been explicitly assigned to the new email address in Outlook's settings.
In Microsoft Outlook, signatures are tied to specific email accounts. When you add a new email address, you must manually assign a signature to it, even if you already use one for your primary account.
Launch Microsoft Outlook, click on the 'File' tab in the top-left corner, and select 'Options' located at the bottom of the left-hand menu.
In the Outlook Options dialog box, click on 'Mail' in the left sidebar, then click the 'Signatures...' button on the right side.
In the Signatures and Stationery window, look under the 'Choose default signature' section. Use the 'Email account' drop-down menu to select your additional email account.
Use the 'New messages' and 'Replies/forwards' drop-down menus to select the specific signature you want to use for this account, then click 'OK' to save your changes.

Change Message Format to HTML
If your email compose format is set to Plain Text, rich text formatting and images in your signature will be stripped out and may appear broken or missing.
Recreate the Signature and Repair Office
If the signature is assigned correctly but still fails to load, the signature file may be corrupted or there could be an issue with the Office installation.
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Frequently Asked Questions
Why does my Outlook signature show up as plain text?
This happens if your email composer format is set to Plain Text instead of HTML. Go to File > Options > Mail and change the 'Compose messages in this format' setting to HTML to restore formatting and images.
Can I have different signatures for different email accounts in Outlook?
Yes. Outlook allows you to create multiple signatures and assign a specific default signature for new messages and replies/forwards for each individual email account added to your profile.
What should I do if the signature button in Outlook doesn't work?
If clicking the Signatures button freezes Outlook or fails to open the menu, it often indicates a corrupted Office installation or a registry conflict. Running a Quick Repair from the Control Panel or uninstalling pre-installed Microsoft Office desktop app fragments usually resolves the issue.




