Which mailing service provides a sender with a receipt and electronic verification upon request?

Certified Mail is the mailing service that provides the sender with a receipt and electronic verification upon request. This service is specifically designed to provide proof of mailing and delivery, allowing the sender to track the item through the delivery process. When sending a piece of mail using Certified Mail, the sender receives a unique tracking number, which can be used to confirm delivery status online.

Additionally, once the mail is delivered, the recipient is required to sign for it, and this signature can be accessed through electronic verification. This feature is particularly useful for sending important documents or sensitive material that requires confirmation of delivery. The combination of the receipt upon mailing and the signed delivery confirmation makes Certified Mail a reliable option for those needing to ensure their mail reaches its intended recipient safely and with documented proof.