Certified Electronic Mail (PEC) is the system that allows you to send e-mails with legal value equivalent to a registered letter with a return receipt.
The Digital Signature is equivalent to the traditional handwritten signature on paper. Its characteristics are:
Legal validity: The digitally signed document acquires full legal value;
Authenticity: The identity of the subscriber is guaranteed;
Integrity: The inalterability of the signed document is ensured;
Non-repudiation: The signed document cannot be denied by the signer.
These tools will be necessary for you to start the procedures for starting your business as an individual company.