From Crossware Mail Signature 2.931 and above, support for multiple certifiers has been added.
It is now possible to add multiple license keys to the default Server Configuration
You can have license keys for difference versions of Crossware Mail Signature installed. This allows for the support in a mixed version environment during upgrades.
When the server starts and the application is loaded it will check all the licenses in the until it finds a valid license.
Adding multiple license keys
Open the default Server Configuration
document and select the "License" tab.
One the license tab, enter the multiple license keys an a separate line.