Sending email messages easily
The SMTP component offers a comprehensive interface for SMTP, providing the developer with everything that he needs
to incorporate email sending tasks in an application as listed below:
- Connect to standard SMTP server or secure SMTP server over TLS/SSL. It supports both Implicit and Explicit security modes
- Send bulk messages
- Send to relay SMTP server
- Quick send with static methods
- Submit to IIS SMTP queue
- Support PIPELINING
- Delivery Status Notification (DSN)
- Obtain mailbox information
- ESMTP authentication with LOGIN, PLAIN, CRAM-MD5, DIGEST-MD5, NTLM, and Kerberos methods
Supports MIME and S/MIME
When designing the SMTP component, we mainly forcus on ease-of-use, performance, reliability, and flexibility. As a benefit, you do not need to have
deep knowledge of how the SMTP protocol is implemented and how to read, encrypt, decrypt, sign and validate a message. SMTP component does all the hard works for you.
The following is a list of some key MIME and S/MIME features:
- Load and save message from/into MailMessage object
- Supports multiple recipients with To, CC, and BCC headers
- Attach multiple files
- Encrypt, decrypt, sign, and validate email messages easily
- Extract attachments from MS-TNEF (winmail.dat) files
- Import HTML file or web page into e-mail
- Forward message as attachment
- Base64 and Quoted-Printable
- Fullly support creating and displaying HTML messages with embedded resources such as Image, source, etc. in your applications
Security and Reliability
The Ultimate SMTP component provides industry standard security using the
Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols.
Our components support strong, commercial grade encryption, and we do not rely on any third-party toolkits which have licensing
restrictions or are encumbered by patents. By setting a single property or option, the component automatically handles
all of the complex certificate management, protocol negotiation and encryption for you. Even advanced options, such as using client
certificates, are handled easily with just a few lines of code.
Supports HTTP Connect, SOCKS4, SOCKS4A & SOCKS5 Proxy Servers
Ultimate SMTP provides full support for Proxy Servers such as HTTP CONNECT,
SOCKS4, SOCKS4A, and SOCKS5. By simply setting a few properties, you are
able to send email messages from SMTP servers through the desired proxy server, providing
your application with the greatest flexibility and highest level of security available.
Support for IPv6, the next generation Internet protocol
IPv6 (Internet Protocol version 6), the next-generation protocol designed by the IETF (Internet Engineering Task Force),
will gradually replace the current version of the Internet Protocol, IPv4.
With Ultimate SMTP Component, users have an integrated service assurance solution that
will provide them with SMTP, and Proxy capabilities in mixed IPv4 and IPv6 environments.
This helps organizations with the adoption of and the transition to IPv6 by making the management of such networks seamless.
By using 100% managed code written in C#, the Ultimate SMTP component
takes advantage of the numerous built-in features of the .NET Framework to enhance
performance, moreover, the component is CLS compliant, and it does not use
any unsafe blocks for minimal permission requirements. In addition, the component is highly compatible with Microsoft ClickOnce.
Supports many .NET Platforms
Ultimate SMTP Component for .NET supports the following platforms:
- Windows Forms
- Web Forms
- Web Services
In addition, it is also possible to use the component in
PowerShell - Microsoft’s new command console and scripting language.
Ultimate SMTP is fully compatible with Visual Studio 2005 to 2013 (.NET 2.0 to .NET 4.5.1). As a benefit, you are always up-to-date with Microsoft's Technologies when using our products.
Supports event-driven (Asynchronous) and blocking (Synchronous) Design
Most applications written with the SMTP component will be synchronous.
Synchronous method gives you the ease-of-use, but it can only returns the control
back to the caller after it has finished, meaning that it blocks the execution of
the caller for a period of time. Using synchronous method is recommended when you
only need to execute one SMTP operation at a time.
You might decide that your design requires an asynchronous sending when it is
needed to send email messages simultaneously. Asynchronous methods provide a great deal
of power. Asynchronous method is executed on a thread separate from the calling
thread. Such operation is useful when an SMTP operation is time consuming
and other codes need to execute without waiting for the initial operation to complete.
In addition, the user interface will be most responsive when asynchronous methods
The SMTP component has been designed with a great degree of flexibility
and can be used with a wide variety of programming languages and different types
of development environments. Available as a managed .NET class, it is fully supported
by languages such as Visual Basic, Visual C#, J#, Managed C++,
Borland C# Builder, and Delphi.
As important as functionality, features and stability are, comprehensive documentation
is equally as important to the application developer. This is why the ComponentPro
SMTP for .NET product includes a Developer's Guide and a complete Technical
Reference which documents every property, method and event supported by
the component. A printable version of the documentation is included with the product,
as well as context-sensitive online help which can be accessed directly from within
the development environment.
Lots of complete SMTP client sample in C#, VB.NET, and ASP.NET
In addition to the fully documented Developer's Guide and a complete Technical Reference,
Ultimate SMTP component also includes a number of samples with
full source code which help you become familiar with the features of
the component and provide code which you can re-use in your own applications.
The setup package contains three complete SMTP client applications: SMTP Console Client, SMTP WinForms Client, and SMTP WebForms Client.
ComponentPro understands today's software development requirements which often require
support for multiple operating systems and different programming languages. As with
all ComponentPro components, the product is licensed to a single developer, and
applications built using the SMTP component can be redistributed to as many end-users as
needed without additional royalties or runtime licensing fees. Developers
are also permitted to install the product on different development systems as long
as they are the only one using it and there is no chance that it can be used by
more than one developer at the same time.