We always recommend signing the document from the indicated email address, and not forwarding the signature request to a different email address. If the signature request is forwarded, the audit trail collects this information, and will register that the request was opened from different devices and IP addresses, weakening essential identification elements of the signatory.
It is important to keep in mind that the proper identification of the signatory is not only an element that provides security to the signing process, but is also a necessary requirement for an advanced electronic signature to be valid, in compliance with the provisions of article 26 of the eIDAS Regulation.
While Signaturit collects additional identifying elements (such as date / time of signature and document data), correct email address is vital to ensure validity of signatory.