tracking an envelope usps

tracking an envelope usps can be done using the tracking number provided by USPS, which is included with most services like Priority Mail or Express Mail. First-Class Mail, which is often used for envelopes, may not always include tracking, but for an additional fee, tracking can be added to most mail services. You can track an envelope’s journey online through the USPS tracking tool or through your mobile device to receive updates on its delivery status.