Outlook add-in reports "The request has failed...." - Signature 365

If the Signature 365 add-in shows a blank pane and then displays a request failed or timeout error, Exchange Web Services (EWS) may be disabled for the affected mailbox.

Before you make changes, confirm the user has been deployed the add-in by following How to install the Outlook add-in.

Signature 365 Outlook add-in showing the request has failed error message

Signature 365 Outlook add-in showing a timeout error after the request fails

Open the Exchange admin center and select Mailboxes.
Select the affected user and click Manage email apps settings in the flyout.
Make sure Exchange web services is selected. The add-in requires this setting.

Next steps

If the add-in is not yet deployed, complete How to install the Outlook add-in.
If EWS is already enabled and the error continues, review Signature 365 ports and URLs to make sure the required endpoints are reachable.

Multi-factor recovery process

Learn the security verification process Symprex uses before removing MFA from a Signature 365 account.

Role-based access control in Signature 365

Create custom roles in Signature 365 with specific portal permissions beyond the default Administrator and Editor roles.