If you'd like, I can provide a for a specific language or help you set up a webhook handler for bounce notifications. Which part Getting started with Postmark
Early postmarks were often simple black ink "killer" marks designed to deface the stamp.
: Providing an indisputable, location-specific time stamp of when a letter entered the postal stream.
This is a software security issue and is unrelated to the United States Postal Service postmarking process. 6. Summary of Postmark Types
A label printed at a retail counter that acts as both postage and a postmark.
The postmark is more than just a stamp of ink on an envelope. It is a fundamental piece of postal infrastructure, a historical document, and a collectible artifact. From its 17th-century origins to its 21st-century legal definitions, the postal postmark tells the story of how we communicate.
We hope you’ll give the new products and updates a try. If you have an idea for improving our products or want to vote on other user ideas so they get prioritized, please submit your feedback on our Community platform. And if you have any questions, please feel free to ask in the Community or contact our Technical Support team.