Special Mail Tags to Configure.
There may be times when you need more information than just the submitter’s input through contact form fields. For example, you may need to know the submitter’s IP address for security reasons. For such purposes, special mail-tags can be very helpful. Unlike other mail-tags, special mail-tags are independent from form fields or the submitter’s input. You can place these special mail-tags anywhere mail-tags are allowed to be used, such as in the message body or other mail fields.
Just select the special mail tags you want to add in your sheet as a header.