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Delivery Address | Postal Explorer - USPS
Automated mail processing machines read addresses on mailpieces from the bottom up and will first look for a city, state, and ZIP Code.
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E-Mail Addresses
Validating an Email Address Verify a maximum length of 320 characters (64 + 1 + 255). For Unicode addresses, verify well-formed UTF-8. Match the pattern
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Addressing Envelopes and Packages
Some classes or types of mail do require a valid return address. The stamp or postage is placed in the upper right-hand corner of the envelope. When addressing
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