MailBee.NET POP3   
http://www.afterlogic.com

MailBee.NET POP3 is a set of powerful and robust .NET components for receiving, parsing and managing mail on POP3 servers. Written in 100% managed C# code, MailBee.NET POP3 can be used in desktop, console and ASP.NET applications developed in C#/VB.NET/etc. The key features of the components: quick methods for receiving mail with a single line of code; POP3 PIPELINING and other POP3 extensions supported; secure TLS/SSL connections; download entire messages, headers only, headers + part of body; MS-TNEF (winmail.dat) attachments support; accurate and flexible MIME parser; view and preprocess HTML mails with embedded pictures; HTML-to-PlainText conversion and vice versa; secure and user-defined authentication (including NTLM and APOP); Windows Integrated Authentication (authenticate using the current Windows user credentials); TO/CC/BCC, international charsets, custom headers, custom message formats (such as meeting request items); access to every MIME part; import from and export to .EML files, streams, XML; integration with Smtp component; rich set of events and error handling features, memory and file logging, and much more; asynchronous processing options; documentation is available in CHM, VS.NET 2003, and VS.NET 2005 formats; royalty-free distribution.

MailBee.NET SMTP   
http://www.afterlogic.com

MailBee.NET SMTP is a set of powerful and robust .NET component for composing, mail merge, and sending mail to SMTP servers, to IIS SMTP queue, 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 TLS/SSL connections; secure and user-defined ESMTP authentication (including NTLM and POP-before-SMTP); Windows Integrated Authentication (authenticate using the current Windows user credentials); send to IIS SMTP queue; 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; documentation is available in CHM, VS.NET 2003, and VS.NET 2005 formats; royalty-free distribution.

Pivo SMTP Component   
http://www.pivo.com

Short for Simple Mail Transfer Protocol, a protocol for sending e-mail messages between servers. Most e-mail systems that send mail over the Internet use SMTP to send messages from one server to another; the messages can then be retrieved with an e-mail client using either POP or IMAP. In addition, SMTP is generally used to send messages from a mail client to a mail server. This is why you need to specify both the POP or IMAP server and the SMTP server when you configure your e-mail application. Pivo Smtp Component is one which can be used in web/window application like C#,ASP.NET, VB, smpt component allows your applications or web pages to create and send email messages over SMTP protocol just in a few lines of code. Sends messages as plain text or in the HTML format. Smtp Component can send email to any email address with or without smtp server as parameter. Email can contain any number of attachments, unlimited recipients, cc's and bcc's. Send Email directly from you web page via applications/browsers.

Pivo pop3 Component   
http://www.pivo.com

A high performance POP3 component enables ASP/ VB/ VC++/ C#/ VB.NET/ ASP.NET or other COM environment applications to retrieve email from mail server based on POP3 protocol. Pivo POP3 Object supports all operations. It also provides advanced features such as retrieve emails in background, capability of unlimited queued request. POP3 is a widely-deployed mail access protocol. Many programs access POP3 message stores, and thus need POP3 configuration information. Since there are multiple configuration elements which are required in order to access a mailbox, a single string representation is convenient. A POP3 mailbox (like an [IMAP4] mailbox) is a network resource, and URLs are a widely-supported generalized representation of network resources.A means of specifying a POP3 mailbox as a URL will likely be useful in many programs and protocols.

MailBee SMTP   
http://www.iforum.com

MailBee SMTP is a powerful and easy to use COM object which enables ASP and Windows applications to create, send and queue mail to SMTP servers. Secure authentication, email validation, correct MIME composer, multiple attachments, and much more. Can be used in conjunction with SSL, POP3 and IMAP4 components. Royalty-free distribution.