Yes, Deutsche Post AG offers signature services upon delivery for certain types of packages. This feature is typically utilized for valuable items or important documents where proof of receipt is required. The sender can select this option when preparing the shipment, ensuring that the package requires a signature from the recipient at the time of delivery. It is advisable for customers to review the specific details and terms associated with the signature service on the Deutsche Post website, as different services may have varying guidelines and conditions. This information will help ensure that the proper procedures are followed and that the sender's preferences are met. For additional inquiries or detailed assistance, visiting the Deutsche Post website can provide the necessary contact information and resources.