Publisher's Description:

MailBee.NET SMTP is a set of powerful and robust .NET component for composing, mail merge, and sending mail to SMTP servers or directly to end recipients (via DNS MX Lookup).

Written in 100% managed C# code, MailBee.NET SMTP can be used in desktop, console and ASP.NET applications developed in C#/VB.NET/etc.

The key features of the component:
quick methods for sending mail with a single line of code;
SMTP PIPELINING and other ESMTP extensions;
secure and user-defined ESMTP authentication (including NTLM and POP-before-SMTP);
accurate and flexible MIME builder;
compose HTML mails with embedded pictures;
HTML-to-PlainText conversion and vice versa, alternative body generation;
mail merge, send a web page, read and delivery receipt, Delivery Status Notifications;
international charsets, UTF-8, TO/CC/BCC, custom headers, custom message formats (such as meeting request items);
email address parsing and validation;
multiple attachments, file and memory attachments;
XML, streams, backup SMTP and DNS servers, multi-threading, asynchronous methods;
track accepted and refused recipients;
forward/resend mails loaded from a file or received with other components (such as MailBee.NET POP3);
rich set of events and error handling features, memory and file logging, and much more;
royalty-free distribution.