Mailit for C/C++ Mac OS X for Mac

From Dacons International:

Mailit lets you send, receive and parse emails with your applications. No knowledge of email protocols is required to leverage Mailit in your projects. Mailit provides rock-solid implementation of all major email standards including SMTP, POP, IMAP4 and MIME including TLS/SSL. Make use of Dacons 10 years expertise in email and leverage high quality yet cost efficient email functionality in your application.