Computer-implemented method for verifying at least one postal item, preferably a letter, a parcel, a packet or a
package; the method comprising at least the following steps: a. generate at least one encrypted data
record in an
online database on at least one
server; b. create at least one transmission link to the data
record by the
server; c. Encoding the shipment link into at least one
machine-readable shipment code, preferably a
barcode and / or a QR code, by the
server; d.
affix, preferably by printing and / or
engraving, the shipment code to at least one packaging element, preferably an envelope, a shipping bag, a shipping box and / or a sticker, for the postal shipment; e. transmit, preferably hand over or send, the packaging element to a sender of the postal item; f. Reading the transmission code and decoding the transmission link with at least one sender device, preferably a smartphone,
tablet computer,
laptop computer and / or desktop computer; of the sender; g. opening the encrypted
data set with the sender's terminal device using the sender's personal key; h. activating the shipment code by entering shipment information comprising at least one
electronic signature to authenticate the sender and preferably at least one name and / or address of a recipient of the mail item into the encrypted data
record with the sender's terminal device; i. sending the postal item with the packaging unit by a
postal service provider to the recipient; j. Reading the shipment code and decoding the shipment link with at least one
authentication device, preferably a smartphone,
tablet computer,
laptop computer and / or desktop computer; of the
postal service provider and / or the recipient; k. Opening at least part of the encrypted
data set with the
authentication device using a personal key of the
postal service provider and / or the recipient; and I. Authenticate the sender using the
electronic signature with the
authentication device.