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How to Fix Outlook Signature Not Showing for Additional Email Accounts

WPS Content ManagerWPS Content Manager Oct 10, 2026 870 views

Question details

The user needs to configure Microsoft Outlook so that their email signature automatically appears when composing messages from a secondary email account.

How to Fix an Outlook Signature for an Additional 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.
Before you start

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.

Solution 1Recommended

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.

1
Open Outlook Options

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.

2
Navigate to Signatures

In the Outlook Options dialog box, click on 'Mail' in the left sidebar, then click the 'Signatures...' button on the right side.

3
Select the Email Account

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.

4
Assign the Signatures

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.

Assign the Default Signature to the Secondary Account
Signature Assigned: Your signature will now automatically append whenever you compose, reply, or forward an email from this specific account.
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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.