Pricing & Classification DMM Advisory

Message board to keep postal customers informed of changes to mailing standards, services, and prices.

May 7, 2020

UPDATE 37: International Mail Service Disruptions Due to COVID-19

On May 7, 2020, the Postal Service™ received a notification from Liechtensteinische Post, the designated postal operator of Liechtenstein, advising that effective May 11, 2020, delivery of registered letters and parcels will require the addressee’s signature or at the addressee’s option, the deliverer’s signature. If the customer is not at home to sign, the item will be delivered to the relevant postal branch as usual.

This service disruption affects Priority Mail Express International® (PMEI), Priority Mail International® (PMI), First-Class Mail International® (FCMI), First-Class Package International Service® (FCPIS®), International Priority Airmail® (IPA®), International Surface Air Lift® (ISAL®), and M-Bag® items.

The DMM Advisory will continue to update mailers regarding new service disruptions as they are received. For a full list of international service disruptions, please visit