Microsoft has set Client Secret Values from Azure to be valid for a maximum of two years. To ensure that applications continue to read the mailbox, these codes must be renewed every two years.
When a Client Secret Value expires, it results in the mailbox not being read, with emails remaining in the import folder.
Ask your IT department to check this in Azure.
Here is a brief guide to renew this:
- Log in to the Azure portal at https://portal.azure.com.
- Use the appropriate credentials and go to the 'Azure Active Directory' service.
- In the Azure Active Directory dashboard, click on 'App registrations' in the sidebar.
- Find and select the application for which you want to renew the Client Secret.
- Choose the 'Certificates & secrets' option from the selected application's menu.
- Find the specific secret you want to renew.
- Click on the secret and select 'Renew' or 'Generate new secret (Client Secret)'. Please share this key with our support so that we can change it for you.
- Enter a description for the new secret and choose the duration of validity.
- Save the changes.
- Delete the old secret (optional)
(The Client Secret Value (secret) is identified by a ~ in the line).
If you are sure that all applications have been updated with the new secret, consider deleting the old secret to minimise possible security risks.