Webroot Spam Shredder   
http://www.webroot.com

Halt intrusive spam in its tracks! New from Webroot, the leader in online privacy and protection software, Webroot Spam Shredder filters undesired commercial advertising to save you time and hard drive resources. It auto-detects and configures Outlook, Outlook Express and Eudora email accounts for immediate relief from spam. Simple, manual configuration is necessary for other POP3 mail clients, however Webroot Spam Shredder does not currently support web-based email accounts. Already pre-educated to sort some desired messages from spam email, the smart learning engine studies your decisions to keep or delete spam to more effectively sort future email. Whitelist and Blacklist features let you identify email that should be immediately delivered or instantly deleted. Outlook, Outlook Express and Eudora users can instantly import their contact list into the Whitelist. Webroot Spam Shredder quarantines suspected spam before it reaches your inbox, and messages can be deleted or safely held for later review. The spam threat database is regularly updated to protect you from the latest spam tactics as they emerge. You can specify your desired level of protection from spam and the size and type of messages to scan with Webroot Spam Shredder's easy-to-use controls. Webroot Spam Shredder is backed by Webroot's expert technical support team via email or phone.

Email caster   
http://www.worldminer.com

Email caster is a marketing tool software that can validate emails list and send customized message  directly to recipients and get instant feedback.It has embeded in SMTP relay ,so you do not need using the SMTP relay server of your ISP.In addition,Email caster can give you instant feedback on every email sent ,then you can delete those invalid email addresses from your mailing lists.

Email catcher&sender   
http://www.worldminer.com

Email catcher & sender is software designed to Extract e-mail addresses from local text files, web sites , search engines and Newsgroups. Just type one or more keywords, Email catcher & sender will query major Search engines: Yahoo, Google, AllTheWeb, Aol, Msn, Looksmart, Dmoz etc and extract e-mail addresses matching your query.By using powerful e-mail and url filters, you can extract only the e-mail addresses you actually need from web-pages, you no longer have to buy mailing lists. Email catcher & sender allows you to extract your own , when you want. Email catcher & sender also can validate e-mail lists and send customized e-mail directly to recipients and get instant feedback. It has a built in SMTP relay , so you bypass the SMTP relay server of your ISP. In addition, Email catcher&sender can give you instant feedback on every e-mail sent , then you can delete those invalid e-mail addresses from your mailing lists.

Emailserver detector   
http://www.worldminer.com

Emailserver detector is a software designed to directly search email addresses from mail servers. It can verify all user names that you specified on the mail server.The program tries to connect with a specail Smtp-server and simulates sending the message. It does not come to the message sending ,in fact,It disconnect as soon as mail server informs does this address exist or not.The program is multi-threaded that provides the high speed of verifying. Using this software, you can get lots of email addresses from a special email server,For example :Hotmail.com .It can also send message to valid email addresses while searching.It has Embeded in a SMTP server that quickly send mass email directly to recipients.No use your ISP'S SMTP server.You can also save the valid email addresses to a one-per line text file.

Email Address Finder   
http://www.iemailworld.com

Email Address Finder can search bulk email address from mail server. You also can send bulk email to every valid email address while searching. You can get more than 5500 email addresses per minute at only 56Kbps speed. It allows you save the search progress and load it to resume work at your convenience. All you need to do is just input an email address, and press the "Search" button.