The best solution at the cheapest price everExample: YourCompany@kelipec.it
Certify the third level domain with your company nameExample: email@example.com
Certify the whole domain with your company nameExample: firstname.lastname@example.org
The Certified electronic mail (PEC) is a specific kind of legalmail as valid as a registered mail with return receipt and it's generally used in the administrative and commercial fields.
When you send a PEC legalmail the provider in charge of its management sends you a receipt, as proof of the operation including the date and hour of delivery. At the same time, the provider receiving the electronic certified mail, after dropping it in the receiver's mailbox, will send you a receipt as proof of the reception, containing the date and hour of the operation.