Postmark

The date the mailpiece was first processed at an automated facility or accepted at a retail counter Cancellation Bars:

The name of the processing facility or the city, state, and ZIP code of the retail unit that applied the marking postmark

: Use the Mustachio syntax to create dynamic templates with placeholders that you populate via the API. The date the mailpiece was first processed at

In computer science, is also the name of a classic benchmark used to measure the performance of file systems . It simulates the "ephemeral small-file regime" typical of internet servers (like email and web commerce), testing how efficiently a system can create, read, and delete thousands of small files. Postmark Pricing and Free Trial postmark