First, install the package: npm install postmark
Historically applied with a physical rubber stamp and ink pad (known as a "handstamp"), most modern postmarks are applied via high-speed cancellation machines. These machines do two things simultaneously: they "cancel" the postage stamp (marking it so it cannot be reused) and imprint the postmark details. postmark
Postmark collecting, also known as postmark philately, is a popular hobby among stamp collectors. Collectors seek out postmarks from various locations, dates, and events to add to their collections. Some popular types of postmarks to collect include: also known as postmark philately
But there is a quieter, arguably more important hero of your communication stack: . postmark