P.E.C. Certified mail


What is PEC and how does it work?


The Certified Electronic Mail, briefly called PEC, is the new system through which it is possible to send eMail with legal value identical to a registered letter with return receipt, as established by the current legislation "Decree Law n.185 of 29/11/2008 converted in the law n. 2 of the 28/01/2009 it obliges the use of the Certified Electronic Mail (PEC) for the professionals and the Companies respectively within 1 and 3 years.



Certified mail messages are sent between 2 certified mailboxes.


The sender owner of a PEC box, shown here in red in the figure, sends a message to another certified user (Step 1), the message is collected by the certified domain manager that encloses it in a transport envelope and apply an electronic signature (Step 2) in order to guarantee inalterability and provenance. Once this is done, it directs the message to the recipient PEC manager that checks the signature and delivers it to the recipient (Step 3). Once the message has been delivered, the recipient PEC manager sends a receipt of successful delivery (Step 4 and 5) to the sender user who can therefore be certain that his message has reached its destination.


During the transmission of a message through 2 PEC boxes, other receipts are issued that are intended to guarantee and verify the correct functioning of the system and to always maintain the transaction in a consistent state.


Certified e-mail messages are sent via PEC but received via traditional mail. The transmission is considered certified mail only if the boxes of the sender and the recipient are certified e-mail boxes. If one of the boxes involved in the transmission is not a PEC box, the value of the transmission is lost and the system can provide only part of the certification functions provided; in this case, for example, the delivery receipt is not provided.


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