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FAQs
11/28/2025

Modernization of Address & NCOA Processing with APIs - Q & A

11/26/2025

INFORMATIONAL - International Suspension of Mail Service - Effective November 28, 2025

Tech Guides
11/26/2025

PostalOne! Release 63.0.0.0 Mail.XML TEM WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ TEM Release 63.0.0.0

Tech Guides
11/26/2025

PostalOne! Release 63.0.0.0 Mail.XML PrePROD WSDLs

Tech Guides
11/26/2025

PostalOne! Release 63.0.0.0 Mail.XML PROD WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ PROD Release 63.0.0.0

Tech Guides
11/26/2025

PostalOne! Release 63.0.0.0 Mail.XML CAT WSDLs

This ZIP file contains the Web Services Description Language (WSDL) and XML Schema Definition (XSD) files for Mail.XML™ CAT Release 63.0.0.0

Presentations
11/25/2025

2026 Mailing Promotions Webinar Slides

Presentations
11/25/2025

2026 Mailing Promotions Webinar

User Guides
11/25/2025

Quick Reference Guide: Bundle Preparation and Handling Recommendations

A guide to ensuring your bundles stay secure during transit.

Announcements
11/24/2025

DELIVERY: Central Area - Illinois 1 - Wilmette Post Office (60091) - Suspended

Announcements
11/24/2025

DELIVERY: Atlantic Area - Pennsylvania 1 District - Amity Post Office (15311) - Office Temporarily Suspended

Announcements
11/21/2025

PCC Voice Challenge - ThankfulforPCC

Announcements
11/20/2025

INFORMATIONAL - Thanksgiving Holiday 2025 Shipping Recommendations for Lives Animals

Announcements
11/20/2025

INFORMATIONAL - Commercial System Releases – November 20, 2025

Announcements
11/19/2025

DELIVERY - Southern Area – South Carolina District Sunset Post Office (29685) – Closed Indefinitely

Presentations
11/18/2025

Addressing and NCOALink Modernization

Release Notes
11/16/2025

November 16 2025 Release Notes

Announcements
11/14/2025

INFORMATIONAL - Web Tools Migration Webinar

Announcements
11/14/2025

INFORMATIONAL - Scheduled Commercial Systems Activities November 15, 2025

Announcements
11/14/2025

INFORMATIONAL - January 2026 Competitive Price Change

Announcements
11/14/2025

DELIVERY - WestPac -CO-WY District Poncha Springs (81242) - Closed

Announcements
11/14/2025

INFORMATIONAL - Peak Season Network Update Webinars - Follow Up

Announcements
11/13/2025

INFORMATIONAL - January Price Change 2026 - Commercial System Releases January 4, 2026

Announcements
11/13/2025

INFORMATIONAL - Important Update: Periodicals Mailing Privileges Application Process

Presentations
11/12/2025

Addressing Modernization - API

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Filter Resources

Modernization of Address & NCOA Processing with APIs - Q & A

INFORMATIONAL - International Suspension of Mail Service - Effective November 28, 2025

PostalOne! Release 63.0.0.0 Mail.XML TEM WSDLs

PostalOne! Release 63.0.0.0 Mail.XML PrePROD WSDLs

PostalOne! Release 63.0.0.0 Mail.XML PROD WSDLs

PostalOne! Release 63.0.0.0 Mail.XML CAT WSDLs

2026 Mailing Promotions Webinar Slides

2026 Mailing Promotions Webinar

Quick Reference Guide: Bundle Preparation and Handling Recommendations

DELIVERY: Central Area - Illinois 1 - Wilmette Post Office (60091) - Suspended

DELIVERY: Atlantic Area - Pennsylvania 1 District - Amity Post Office (15311) - Office Temporarily Suspended

PCC Voice Challenge - ThankfulforPCC

INFORMATIONAL - Thanksgiving Holiday 2025 Shipping Recommendations for Lives Animals

INFORMATIONAL - Commercial System Releases – November 20, 2025

DELIVERY - Southern Area – South Carolina District Sunset Post Office (29685) – Closed Indefinitely

Addressing and NCOALink Modernization

November 16 2025 Release Notes

INFORMATIONAL - Web Tools Migration Webinar

INFORMATIONAL - Scheduled Commercial Systems Activities November 15, 2025

INFORMATIONAL - January 2026 Competitive Price Change

DELIVERY - WestPac -CO-WY District Poncha Springs (81242) - Closed

INFORMATIONAL - Peak Season Network Update Webinars - Follow Up

INFORMATIONAL - January Price Change 2026 - Commercial System Releases January 4, 2026

INFORMATIONAL - Important Update: Periodicals Mailing Privileges Application Process

Addressing Modernization - API

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