USPS changed postmark rules; why your mail could be late now

What is new at the post office in 2026? Here's what to know about Postal Service changes in postmark process, postage stamps ...
MassLive

Mailing one of those cute square envelopes? You’re going to need this special stamp

Before you mail out that wonky-sized birthday card or lumpy wedding invitation, you should check if it costs more. For envelopes that are square, bigger than usual, aren’t flat or shaped weird, you’re ...
Business Wire

Avery Products Corporation and Stamps.com Make It Easy for Avery Label Users to Purchase and Print U.S. Postage

BREA, Calif.--(BUSINESS WIRE)--Avery and Stamps.com have developed a new way to print labels and postage together saving time for mailers via Avery.com. Using Avery ...