Mask email left part of domain
This function masks what comes between the @ character and the dot in e-mail adresses. Two methods are available: By character and From a list of values.
This function only applies on Strings.
| Option | Description | 
|---|---|
| Method | When using the By
						character method, this function masks what comes between the @
					character and the dot with a character. When using the From a list of values method, this function masks what comes between the @ character and the dot with one of the values from the specified list.  | 
         
| Extra parameter | 
               This function requires an extra parameter.
                When using the By character method, the extra parameter must be a character. If you specify an invalid extra parameter, like a string, a list, multiple characters or a digit, all characters between the @ character and the dot will be masked with X characters by default. When using the From a list of values, the extra parameter can be a comma-separated list of domains or a path to a file containing a list of domains. If you do not specify an extra parameter, all characters between the @ character and the dot are removed.  | 
         
| Input value | Method | Extra parameter | Example of a masked value | 
|---|---|---|---|
| johnsmith@company.com | From a list of values | "newtalend,talendforge" | johnsmith@newtalend.com |