Email Address
The Email Address validation checks the contents of a specified server variable to determine if the value complies with proper email formatting practices. This means that entries must contain an @ symbol, followed by a period to ensure a domain is entered. It can also be configured to accept blank entries.

Set the configuration option and click OK to complete configuration of the validation within the Server Validation dialog.
The following option is available for configuration of the Email Address validation:

Set the configuration option and click OK to complete configuration of the validation within the Server Validation dialog.
The following option is available for configuration of the Email Address validation:
- Allow blank entry: configures the validation to allow blank entries or not allow them.