IP*Works! is a comprehensive suite of more than 40 native Linux class libraries for Internet development. It is a robust framework of enterprise-class tools, enabling rapid integration of any major Internet protocol or technology, including FTP, HTTP, SMTP, POP, IMAP, SNMP, LDAP, DNS, RSS, SMPP(SMS), XMPP (Jabber), SOAP, and WebDav. It includes source code for compilation on various Unix platforms, a framework for Objective-C (Cocoa) Mac OS X development, and native PHP extensions.
IP*Works! SSL adds SSL security, digital certificate generation, and certificate management capabilities to the base IP*Works! Linux class libraries. It supports secure implementations of every major SSL- enabled Internet protocol, including FTPS, HTTPS, SMTPS, POPS, IMAPS, LDAPS, SMPPS, XMPPS (Secure Jabber), SOAPS, and WebDavS.
Ristretto is the mail API that is used by Columba, a Java mail client (http://columba.sf.net). It is available as a stand-alone API, and it provides a well-tested, slim, and fast Java implementation of all relevant mail protocols and features. It is licensed under a MPL/LGPL/GPL tri-license.