
SQLAPI++
Abstract Database Connector
CppDB - SQL Connectivity Library
dotConnect
Postmarkr
LetterStream
Click2Mail
Lob
PrintPigeon
Postsnap
PC2Paper
ClickSend
Postmarkr is an online print-and-mail service for sending business letters through USPS. Upload a finished PDF or import a recipient list, verify addresses, review a true-to-print preview and exact price, then Postmarkr prints and mails each letter via USPS First-Class Mail. Send one letter or a batch with no subscription or monthly minimum. Visit Postmarkr's pricing page for current pay-per-piece pricing. Postmarkr currently supports U.S. First-Class letters and does not offer postcards, Certified Mail, or a public API.
SQLAPI++
PostmarkrAbstract Database Connector - Abstract Database Connector is a C/C++ library for making connections to several databases (MySQL...
LetterStream - Use our website to get your mailing out quickly. We offer First-Class Mail and postcards, Standard Mail also known as Marketing Mail, Certified Mail and FedEx overnight letters. Visit our website: LetterStream.com to get started today!
CppDB - SQL Connectivity Library - CppDB is an SQL connectivity library that is designed to provide platform and Database independent connectivity API similarly to what JDBC, ODBC and other connectivity libraries do. http://cppcms.com/sql/cppdb/
Click2Mail - Mail outsourcing on-demand.
dotConnect - Ultimate solution for developing data-related .NET applications
Lob - A simple API to integrate print & mail solutions into your applications.