BulkVerifier   
http://www.rafasoft.com

Welcome to BulkVerifier, an efficient multi-threaded application for checking e-mail addresses and domain availability. Quickly and easily verifies email addresses, huge domains and clean up your mailing / domain list. A powerful advanced bulk domain and email validation tool. BulkVerifier offers you two processing modes fast and deep. In its fast mode BulkVerifier works extremely fast being able to process mailing lists containing dozens of millions of e-mail addresses at a speed of several thousands addresses per second. This mode does not ensure the highest accuracy of checking/cleaning but is optimal by expended time and traffic and provides quite sufficient results. We recommend the fast processing mode of BulkVerifier as a high-speed tool for sifting obvious rubbish out of large mailing lists containing millions of e-mail addresses. In its deep mode (default), BulkVerifier works significantly slower but provides much more precise results. Optimal data amount for this mode is 70...100 thousand e-mail addresses. We recommend the deep processing mode of BulkVerifier as a slow but high-quality tool for checking of not very large mailing lists. BulkVerifier can process both plain list of e-mail addresses / domains where each line contains one item and files of more complex structure like CSV file where lines represents multi-field records of the same structure (i. e. containing the same fields separated with the same delimiter). For example, you can export a worksheet of an MS Excel file to check availability of e-mail addresses/domains listed there. It’s supposed that one line of an incoming file contains one e-mail address and/or one domain.

Email Validator   
http://www.bytefoundry.com

Email Validator checks deliverability of email addresses. It does so by first performing a DNS query on the domain name of each email address in order to determine the address of the mail server servicing that domain. Once the mail server is found, a connection is made in the same way as your ISP's mail server would make a connection. Email validator will first attempt to use the SMTP VRFY command to determine deliverability. If the VRFY command is enabled, the mail server will report whether the email address being tested is in fact deliverable, Email Validator will then close the connection and report the result. In many cases the VRFY command is disabled on SMTP servers. If this is the case for any given mail server, Email Validator will then attempt to simulate the delivery of an email message. During this process, the mail server will report whether or not it can accept a message for the email address being tested. Once this is reported, Email Validator will close the connection and report the result. NO EMAIL IS ACTUALLY SENT. Email Validator never gets to that point, so the owner of the email address will not receive any message as a result. Once a list of email addresses has been tested, the user may export all addresses along with test results or simply export all deliverable or non-deliverable addresses in order to clean an existing list or build a new one containing only deliverable addresses. The result for anyone who runs a mailing list, i.e. ezine and newsletter publishers, businesses, political parties, non-profit organizations, etc. can save time and money by sending mail only to deliverable addresses and not have to clean delivery failure notices out of their inboxes.

EmailVerifier   
http://www.email-business.com

Keep your email lists up to date and remove email addresses which do not exist any longer. You just have to define the path of your email lists. As a result you receive a list with guaranteed valid email addresses, a list containg probably valid email addresses and a list with invalid email addresses. The EmailVerifier uses a proper proofing mechanism, because most of the mail servers have disabled the standard checking command. Further it exposes mail servers, which give the OK return value for every email address.

Email List Spider Tarantula: EmailSmartz   
http://www.emailsmartz.com

EmailSmartz Email Tarantula is an email finder or email extractor to create targeted business mailing lists for bulk email marketing. This email list software extracts e-mail addresses from websites and web directories for bulk email advertising. The email spider can extract e-mail addresses to create bulk email lists and targeted consumer mailing lists. The email extractor can create targeted business email lists from web email servers. When keywords are specified by the user, E-mail Tarantula spiders relevant web pages, and web servers are queried through the search engines to extract all the e-mail addresses in those pages. Some of the main features are - The email finder searches using keywords as specified, through the search engines, to build targeted business mailing consumer lists. These mailing lists integrate well with most email clients, but we specially recommend the EmailSmartz Mail Sender Pro (www.emailsmartz.com/asp/sender_pro.asp) for direct bulk email newsletter marketing and advertising. - The email extractor searches all pages on the internet, including search engines, newsgroups, web directories, message boards and even pages generated-on-the-fly by dynamic CGI, PHP, ASP, etc.- You can control multi-threading to up to 500 e-mail extraction threads. You can extract email addreses at up to 500 e-mail ids per minute. - Both--email and URLs, from which the email id was extracted -- are listed simultaneously. - Auto-removes duplicate, or e-mail addresses having invalid syntax while extracting. - Free trial download. - 50 per cent discount. The payment gateway on EmailSmartz is hosted on a Https (secure) server and is fully secure. EmailSmartz takes special care to ensure that your credit card and billing information is not compromised and is 100 percent secure. The EmailSmartz privacy policy also ensures that any personal detail as provided by you is kept secure and is not used in any way other than as laid down in the policy.

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.