WakiMail   
http://www.wakisoft.com

WakiMail is a email component. It can be used on asp.net or winform program to send email.The most difference from framework's email class is it support SMTP validate. It's very easy to send email using it. And it's absolute free now.

Atomic Mail Verifier   
http://www.apasscracker.com

Mass communication made a quantum leap towards becoming a truly effective marketing mechanism thanks to electronic mail. As we immerse into new digital era of limitless communication we use various tools for organizing our mass message delivery activities. Successful e-business managers know that current customers database and mailing list maintenance task is one of the toughest yet the most rewarding. Besides acquiring and storing subscribers e-mail addresses database there is another important task – periodical email address verification. People tend to use several e-mail addresses at once as well as they tend to give up those addresses overwhelmed by spam. And everyone loves a new address too! Now that we know this happens, it is a wise choice to check the mailing list for so called ‘dead’ addresses every here and then. However, since most e-mail address verification programs take so long to process an average database many managers omit this important stage. As a result we get unrealistic expectations which in turn means direct profit loss. So, are we stuck here? No, not really! Introducing Atomic Mail Verifier, the unique mailing list entries verification software intended for lightning-fast automatic verification of e-mail lists of all sizes! AMV utilizes all three possible email verification techniques allowing you to choose between the fastest checkup and highest quality of processing. Among those techniques are: email address syntax check, mail domain existence and response check and finally the complete SMTP mailbox check. The application is highly customizable allowing you to specify how exactly you want it to treat different kinds of email addresses and mail domains and how exactly you want it to display and save data for you. Multithreaded checkup engine coupled with wizard-style user interface and an unbeatable price make AMV the perfect choice for serious e-commerce specialists. Download free trial version to see this technology wonder in action!

Auto Mailer   
http://www.email-announcer.com

Auto Mailer is an easy to use, yet powerful bulk email client. Use Auto Mailer to send individual, personalized emails to your customers, contacts, or subscribers. You can send plain text or HTML messages quickly with parallel threads. You can send email using the built in SMTP server, your own ISP's SMTP server, or your MAPI email client (such as Outlook Express). It includes mail merge capabilities so you can personalize your messages. It also includes a "Verify" mode so you can validate your email addresses without actually sending a message. Global and recipient specific attachments are supported. You can schedule a mail job to run unattended at a later time, or use the command line interface to run Auto Mailer unattended from a batch file. All emails are sent just as you compose them, there are no banners or ads appended to your messages. Auto Mailer has built in provisions to prevent it from being used to send spam. Auto Mailer comes in 3 versions: Free, Standard, or Professional.

Spam Trapper for Outlook   
http://www.brigsoft.com

(*) Spam Trapper is a multilevel spam filter for Microsoft Outlook version 2000 and later. It is a plug-in component with clear convenient interface. (*) The first level checks your address book and validates all letters from your clients. So letters from your friends and colleagues are never processed as spam. (*) Other levels check message language, subject, body, http links and other mail feature. The filter has Special Statistical levels that are based on unique algorithms. The last level is a Bayes Filter. Such program architecture allows catching spam before the Bayes Filter is trained enough and minimizes the filter training period. Any level can be switched off. (*) There are non-spam related functions too. For Example, you can use Outlook as an alarm clock. But if you exit it by mistake alarm will not work. SpamTrap allows prevent Outlook from exiting. Instead it hides Outlook and sets an Outlook icon into the systray. So Outlook is always at hand and no alarm messages will be lost. Additional option makes Outlook to play Mp3 files and other media files. (*) Spam Trapper does not work with Outlook Express.

WorldCast   
http://www.fairlogic.com

WorldCast is a free two-in-one tool: A free bulk email software and also an e-mail address validator. It detects many of the common invalid addresses that exists on many emailing lists, reporting errors like bad email addresses, time-out operations, etc., providing a detailed log of the entire delivering process. Features automatic subscription/unsubscription of email addresses, a syntax-oriented editor, mail merge capabilities, HTML editing and preview support, attachments, spell-checker, Thesaurus, extensive filtering of the results, crash recovery, message attachments, etc. Using direct multi-threaded delivery, it ensures 100% usage of your connection capabilities. WorldCast as a bulk emailer acts like a self-sufficient SMTP relay, sending your customized message straight out to the recipient's mail server (without using your ISP's SMTP server, although it still offers the possibility to use any SMTP server). It has extensive mail merge capabilities . Given a certain emailing list, containing email, name and job, for instance, the software generates a customized email to each recipient. WorldCast as an email-address validator verifies an entire emailing list, reporting the bad and good email addresses. WorldCast accepts an unlimited number of projects, importing/exporting recipients (mailing lists) from dBase tables, text and CSV files, as well as address books. Working with huge recipient lists, it imposes no limits to the recipient list size. WorldCast is safe - If, for some reason, your computer hangs in the middle of some processing, it safely recovers it to the state it was before the crash.