Relevant Product: Exclaimer Cloud - Signatures for Office 365
You are using the Exclaimer Cloud Outlook Add-in and you notice your outdated signature is still available in the Outlook Web App (OWA) message even before the Add-in loads your correct, updated signatures.
The outdated signature visible is created by Exclaimer's stand-alone Outlook Web App sync service. Unfortunately, the ability to replace/remove the old signatures has not yet been made available to Exclaimer - this implies that your old signatures cannot be replaced/removed when the Add-in is in use.
However, as a workaround, please see the resolution below.
To remove outdated signatures:
- Disable the Outlook Web App sync within the Exclaimer Cloud portal.
- Remove all existing Outlook Web App signatures.
Disable the Outlook Web App sync within the Exclaimer Cloud portal:
Log into the Exclaimer Cloud portal, launch your subscription, then click the options list from the top-right of your screen and select Settings:
- The Settings window is displayed, select the Azure/Office 365 Permissions tab:
- Under the Outlook Web Signature Permissions section, click Disable:
- Click Close to close the window.
Remove existing Outlook Web App signatures
You can remove OWA signatures using the Windows PowerShell command for either all existing users or for an individual user.
The following sections are described here:
- Steps to remove OWA signatures for all existing users
- Steps to disable OWA signatures using the AutoAdding feature (for all existing users)
- Steps to remove OWA signatures for an individual user
- Steps to set up a remote session to Exchange Server using PowerShell
To remove OWA signatures for all existing users
Open the Exchange Management Shell then run this command:
- Replace 'SignatureHtml' with SignatureText or SignatureTextOnMobile for other signature formats your users might have configured.
To disable OWA signatures using the AutoAdding feature (for all existing users)
You can disable signatures for multiple users (without actually removing the signatures).
Open the Exchange Management Shell. You can run this command in combination with the above command as well, as displayed here:
To remove OWA signatures for an individual user
For this you need to create a new OWA mailbox policy, then apply it to the required user.
For Exchange 2010 SP3 and above, open the Exchange Management Shell then run this command:
- Replace '<username>' the username for whom you wish to disable OWA signatures.
- Replace 'nosig' with the name of the OWA policy you are creating.
- Run this final command for any other required users:
How to set up a remote session to Exchange Server using PowerShell
If you are using a remotely managed Exchange server then you will need to set up a remote session to access the Exchange Server.
To do this:
- Check the system requirements for your operating System:
- Exchange Online
- Exchange Server 2010
- Exchange Server 2013
- Run Windows Powershell.
- Enter this command to check your execution policy settings:
- If the Execution Policy is set to Restricted, then enter this command to change it to RemoteSigned or Unrestricted.
- Enter this command to provide the target server administrator credentials:
- Now, enter the appropriate command to configure the connection:
For Exchange Server 2010 or 2013
For Exchange Online (Office 365):
- Enter this command to start the connection:
- When ready to disconnect, enter this command: