ActiveEmail SMTP E-mail Development Kit   
http://www.activexperts.com

With the ActiveEmail OLE/COM component, you can add and control e-mail functionality within your project in short time. The component does not need MAPI. Sending messages features: custom header fields for messages. create message body (plain or HTML). Create message body using character sets like US-ASCII, ISO-8859-2. Add attachments using Base64 or Quoted-printable. Attachments can be embedded in message body. Add MIME entities. You can set the message sender, add multiple message authors, add multiple Reply-To (singles and groups), add multiple primary, CC, and BCC recipients singles and groups. Authentication using the AUTH LOGIN mechanism. To improve performance, outgoing mails can be queued instead of send them directly, and processed in the background the ActiveEmail Queue service (with no extra costs). The product also features NNTP news postings to news servers. Product can be used with ASP, VBScript, JavaScript, Access, Visual Basic, Visual C++, C#, VB.Net, ASP.Net on various operting systems, including Windows 98, Windows ME, Windows NT 4, Windows 2000, Windows XP and Windows 2003. Check out http://www.activexperts.com/activemail to view online samples. Received 'Toolkit of the Year' award by <a href="http://www.itilfoundations.com">www.itilfoundations.com</a>

Add Email ActiveX   
http://www.traysoft.com

Easily create and send text or HTML emails with attachments and embedded images from your application. AddEmail works with all development environments that support COM objects, ActiveX or OCX controls, such as Visual Basic (VB 5 and VB 6), Visual C++, VB.NET, C#, ASP, ASP.NET, Access, Delphi, PowerBuilder, FoxPro etc. AddEmail supports SMTP and ESMTP protocols with authentication, unlimited number of attachments, embedded images, non-blocking calls, progress indication events, To, Cc, Bcc and ReplyTo fields, international characters, in-memory attachments and much more. Built-in multithreaded SMTP engine can queue and send emails directly to recipient mail servers. Fast and reliable component with excellent support service.