EncryptArguments Element (ICF)
Specifies whether the instance encrypts delivery channel and event provider arguments before storing the values in the instance and application databases. Encrypting arguments that contain sensitive information makes it more difficult for unauthorized users to read this information.
The Boolean values true and false must be lowercase.
If the EncryptArguments value is true, Microsoft SQL Server Notification Services encrypts the delivery channel and event provider arguments before storing them in the database.
Before you create the instance, you must provide your own a key value, which is a string of up to 2500 characters that Notification Services uses to encrypt the data. You must supply this key value when you create, register, and update the instance.