Simple Mail Transfer Protocol Control

Send email messages to one or more recipients.

Reference

Control Information

Object Name SmtpClientCtl.SmtpClient
File Name CSMTPAX6.OCX
Version 6.0.6000.0
ProgID SocketTools.SmtpClient.6
ClassID E2C6BDCE-3966-4DEC-ABCC-705DD943E45C
Threading Model Apartment
Help File CST60CTL.CHM
Dependencies None
Standard RFC 821, RFC 1425, RFC 1869, RFC 2821

Remarks

The Simple Mail Transfer Protocol (SMTP) enables applications to deliver e-mail messages to one or more recipients. The control provides an interface for addressing and delivering messages, and extended features such as user authentication and delivery status notification. Unlike Microsoft’s Messaging API (MAPI) or Collaboration Data Objects (CDO), there is no requirement to have certain third-party e-mail applications installed or specific types of servers installed on the local system. The control can be used to deliver mail through a wide variety of systems, from standard UNIX based mail servers to Windows systems running Exchange or Lotus Notes and Domino.

Using this control, messages can be delivered directly to the recipient, or they can be routed through a relay server, such as an Internet Service Provider’s mail system. The Mail Message control can be integrated with this library in order to provide an extremely simple, yet flexible interface for composing and delivering messages.

This control supports secure connections using the standard SSL and TLS protocols. Both implicit and explicit SSL connections can be established, enabling the control to work with a wide variety of servers. A SocketTools Secure Visual Edition license must be purchased to use the security features in this control.

Requirements

This ActiveX control is supported on Windows 2000, Windows XP, Windows Server 2003, Windows Vista and Windows Server 2008. If you are using Windows 2000, it is required that you have Service Pack (SP4) installed. If you are using Windows XP, it is required that you have at least Service Pack 2 (SP2) installed and it is recommended that you install Internet Explorer 7.0. It is also recommended that all critical updates to the Windows operating system be installed.

The SocketTools Visual Edition components are compatible with any development tool that fully supports COM (Component Object Model) and the ActiveX control specification. This includes Visual Studio 6.0, Visual Studio .NET 2003, Visual Studio 2005 and Visual Studio 2008. If you are using Visual Basic 6.0 or Visual C++ 6.0, it is required that you have Service Pack 6 (SP6) installed. If you are using Visual Studio .NET 2003 or Visual Studio 2005, it is recommended that you install Service Pack 1 (SP1). In all cases, it is recommended that you have the current updates for your development tools installed.

Distribution

When you distribute an application that uses this control, you should install the appropriate file in the Windows system directory. ActiveX controls must be registered on the target system by the installation program before they can be used by an application.


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