What services does Signature Confirmation offer?

Signature Confirmation provides evidence of the delivery signature and adds an extra layer of security to mail items. This service requires a recipient’s signature as confirmation that they have received the item, ensuring that the sender has proof of delivery. It specifically addresses the need for accountability, particularly for important documents or valuable items, as the sender can verify who received the package and when it was delivered.

The other options pertain to different mail services or features. While certification of mailing dates may be relevant to certain types of mail, it does not specifically relate to the tangible security provided by Signature Confirmation. Guaranteed insurance coverage is related to items that need protection against loss or damage but does not involve signatures upon delivery. Priority handling for large packages focuses on expedited delivery service rather than the confirmation of receipt. Thus, the unique feature of providing proof of delivery through a recipient's signature is what makes the answer about evidence of delivery signature and added security the correct choice.