NOW

March 25, 2026 in Memo 865 // USPS EMERGENCY 8% RATE HIKE EFFECTIVE APRIL 26 ON PRIORITY MAIL, GROUND ADVANTAGE, PARCEL SELECT
March 11, 2026 in Memo 865 // MAIL TO MIDEAST SUSPENDED
March 11, 2026 in Memo 865 // Military, Diplomatic Post Office Suspensions
March 11, 2026 in Memo 865 // MAILCOM 2026 Kicks Off On 23rd
March 11, 2026 in Memo 865 // New Premium Forwarding Service Commercial (PFSC) Coming Soon
March 11, 2026 in Memo 864 // Making AI Practical in Mail and Distribution
March 11, 2026 in Memo 864 // “What’s In Your Data” Podcast Examines Data Quality
March 11, 2026 in Memo 864 // How University of Hartford Delivers 60,000 Packages
March 11, 2026 in Memo 863 // The Mail Center Manager’s Guide to IMI Meter Migration
March 11, 2026 in Memo 863 // A Revolutionary Moment in Time Is Coming to First-Class Mail
March 11, 2026 in Memo 863 // USPS SHIP SOFTWARE CHANGES
February 25, 2026 in USPS V KONAN // Supreme Court: USPS Can’t Be Sued, Even When It Intentionally Does Not Deliver
February 18, 2026 in Memo 862 // Postal Service Updates for March 2026 S&DC Activations
February 18, 2026 in Memo 862 // Secure Destruction: A Primer For Mailers
February 18, 2026 in Memo 862 // How To Outsource Your Corporate Mailroom

2017 specs

New Mail.dat Specs Released

April 5, 2017 // 0 Comments

The USPS released new Mail.dat Technical Specifications, Version 3, dated April 3, 2017. (click to [...]

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