Would you like to chat with our support team?
1-866-460-3621
Contact Us
About Us
Login
Home
Tour
Send Mail From...
Postal API
FAQ
Support Forum
Pricing & Buy
Developer Quick Start
Developers' Guide
Reference Manual
Code Samples
You are here:
Home
>
Postal API
>
Reference Manual
> Appendices
Reference Manual
Postal Web Service
Email Reference
"Push" Feedback
Administration Web Service
Status and Error Codes
Supported File Types
System Limitations
Requirements
Appendices
Allowed Country Names
USPS-Specific Instructions on Constructing Your Address Block
Stationery Sizes, Margins and Clearzones
Developer?
Get a full development account, for free:
What's included?
Free and unlimited account
No credit card required
View and track your mail online
Code samples for many environments
Free, high-level and quick support
Limitation: mail posting is only simulated
To send mail, just add funds to your account. No need for code changes
Appendices
Allowed Country Names
USPS-Specific Instructions on Constructing Your Address Block
Stationery Sizes, Margins and Clearzones
‹ Requirements
up
Allowed Country Names ›