Postmark Jun 2026

Applied by a postal clerk at a retail counter upon request. This ensures the postmark reflects the exact date of mailing, which is critical for legal or tax deadlines Postage Validation Imprint (PVI) Labels:

Historically, these were two separate operations. A clerk would hand-stamp the date, then draw lines through the stamp with a pen. Today, high-speed automated machines (like the USPS’s DBCS—Delivery Bar Code Sorter) use ink-jet technology to apply both the cancellation and the postmark in a fraction of a second. postmark

Sign up at postmarkapp.com to start on the free developer tier, which includes 100 emails per month. Applied by a postal clerk at a retail counter upon request

Special designs used to commemorate events or promote public awareness Legal and Practical Importance Postmarks and Postal Possession - Federal Register Once you've verified your domain with DKIM and

You can set up a free developer account that includes 100 test emails per month. Once you've verified your domain with DKIM and SPF records, you’re ready to start sending.