Update on Outlook Web Signature Issue

Hi Team,

We’re still actively troubleshooting the issue with email signatures not automatically applying in the Outlook Web version. So far, we've seen mixed results with the solutions we've tested.

We did notice better consistency when users logged into https://portal.office.com using a different browser, which helped in several cases.

Thanks to everyone who submitted a ticket your reports gave us valuable data points to help identify the root cause. Once we have a confirmed solution, we’ll send an official update to everyone.

Potential Fix – Your Help Needed to Confirm

Please follow the steps below and let us know if this resolves the issue for you:

Open Outlook Web Access and compose a new email.
Wait 2–3 minutes to see if the signature auto-generates.
Close out of Outlook completely.
Log back into Outlook Web Access and try composing a new email again.
If the issue persists, please clear your browser cookies and cache as follows:

Clearing Browser Data Instructions

For Microsoft Edge:

Click the three dots (…) > Settings > Privacy, search, and services
Under Clear browsing data, click Choose what to clear
Set Time range to All time
Select Cookies and other site data and Cached images and files
Click Clear now

For Google Chrome:

Click the three dots (…) > Settings > Privacy and security
Click Clear browsing data
Set Time range to All time
Select Cookies and other site data and Cached images and files
Click Clear data

Please also ensure your browser is fully up to date:

Update Edge:

Click the three dots (…) > Help and feedback > About Microsoft Edge
Edge will check for updates and prompt a restart if needed.

Update Chrome:

Click the three dots (…) > Help > About Google Chrome
Chrome will check for updates and prompt a restart if needed.