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Domestic Mailing
Express Mail® Overnight Guaranteed
Priority Mail® 2 Day Delivery
Letter & Cards (First-Class Mail®)
Reply Mail
International Mailing
Global Express Guaranteed®, 1-3 Business Days
Express Mail International®, 3-5 Business Days
Priority Mail® International, 6-10 Business Days
First-Class Mail® International
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Customized MarketMail Service
Periodicals Ride-Along
Repositionable Notes
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Mailing Resources
Business Mail 101
Address Quality
Bulk Mail Permits
Bulk Mail Drop-Off Locations
A Customer's Guide to Mailing
An Introduction to Mailing for Businesses and Organizations
Intelligent Mail
Domestic Mail Manual
International Mail Manual
Quick Service Guides
Mail Safety
Election Officials' Mailing Resources
Priority Mail Open & Distribute Service
Maps (ZIP Code/Carrier Route Maps)
Mail Transport Equipment
Additional Services
PO Box Service
Insurance, Certified Mail™ & Registered Mail™
Money Orders & Wire Transfers
Passports
Find ZIP Code™
Search for a ZIP Code and validate an address online.
Calculate Postage
Find out how much it will cost to send your mail.
Print Online Postage
Print postage and labels online using USPS®
Click-N-Ship®
or an authorized provider.
Postage Meters
Control costs by printing postage directly onto your mailings.
Track & Confirm
Verify mail delivery online.
Supplies
Buy Stamps
Prepaid Envelopes & Cards
Stickers & Labels (Priority Mail)
Electronic Postmark®
This auditable time-and-date stamp service can help verify the authenticity of a document or file sent electronically, and provides trusted proof of content as of a specific point in time.