On Christmas Eve, the Trump administration quietly changed the rules that formally define what a postmark is and when it is applied (1). Under the new rule, the official postmark date reflects the ...

Portland Post Office unveils commemorative postmark for America's 250th Birthday.

The U.S. Postal Service (USPS) quietly changed what it means for mail to be "postmarked," a move that could make letters, ballots, and time-sensitive paperwork appear late, even if they were dropped ...

The marketing software company, which recently announced big hiring plans for its Dublin EMEA HQ, has acquired Postmark to boost its transactional email services. Customer experience automation ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. A technical update to how the U.S. Postal Service (USPS) defines ...

VALENTINE, Texas — For the past 30 years, the post office in Valentine, Texas has offered a special customized postmark during the first few weeks of February. The postmark's design is selected every ...