With either option, you must include a first name column. You can include as many additional fields as you like.
Our tools are designed to work with partial records. For the name modification/evaluation tools, feel free to just share the firstname and a unique identifier with us, then merge the results back into your primary list. That way, you won't have to share your email or physical address list with us.
Whenever sharing your list with a utility or vendor like us, always seed your list with addresses that, in the event they received communication, would demonstrate unauthorized access to your data.
Enter up to 25 first names (each on its own line) to identify likely gender: