ActiveX that enables Windows and ASP applications to compose, mail merge, send to SMTP server (including Gmail), submit to IIS queue, directly send without SMTP server (DNS MX lookup). Supports HTML with embedded pictures, international charsets, UTF-8, SMTP authentication (including NTLM and GSSAPI), file and memory attachments, custom headers. 32-bit and 64-bit. Delphi, VB6, C++ and others supporting COM objects. Royalty-free distribution.