Send Mail Online

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Apps & Integrations

Connect with the Platforms You Know and Trust

LetterStream® integrates with leading software platforms to bring our business-critical print and mail capabilities directly into the tools you already use. Whether you’re managing documents, sending notices, or automating client communications, our API partners make it simple to send mail at scale — seamlessly, securely, and without ever leaving your preferred system.

Mailing Convenience and Reliability At Your Fingertips

Get the speed, accuracy, and reliability in your mailings with complete control and visibility at every step — all from your desktop computer. LetterStream’s Apps and Integrations allow freedom to send your mail online. Imagine, sending mail from anywhere.

LMR international, inc

Want to see LetterStream® in your favorite platform?

If your software platform isn’t listed yet, let them know you’d like LetterStream® integration. Connecting the tools you already use with our powerful print-and-mail system means fewer steps, faster results, and complete control — all in one place.

send invoices online
First-Class USPS Mail
send certified mail
First-Class Certified Mail
FedEx 2Day mail online
FedEx 2Day Mail Online
Pro Postcard Mail
postcard notice online
Express Postcard Mail
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