CSMail Developer Edition
A suite of ActiveX/COM objects providing SMTP, POP3 and MIME support for application developers. The library is suitable for use in Visual Basic, C++, Delphi and scripting languages such as ASP, VBScript/JScript and VBA. The library has built in support for SOCKS 4/5 and standard proxies, ESMTP authentication, multipart MIME messages, internationalised headers and much more. A COM interop assembly is included for .NET developers.