Contacts Verifier
Contacts Verifier is the first add-in for Microsoft Outlook 2000, 2002/XP and 2003; designed to monitor the validity of e-mail addresses in your contacts. It is able to check your address-book throughout in a matter of minutes notifying you of contacts that contain e-mail addresses which are no... When checking an address, CV imitates the sending of the message to the address being checked, and after receiving the answer from the server (to which the address belongs) as to whether the address exists or not, it terminates message sending and ends the session correctly.
http://www.mapilab.com - 4Kb - Download - Screenshot

High Speed Verifier
High Speed Verifier (HSV) is a high-speed software designed to check e-mail address for existence. HSV is capable of checking thousands of addresses per second. It can easily deal with mailing lists containing tens millions of addresses; moreover, it is with this list size that the program's... More thorough checking (with which the rest 40% of dead emails could be detected) takes 10 times longer and requires 5 times greater traffic for each address, hence it's not that advisable with huge lists.
http://www.mailutilities.com/hsv/hsv.zip - 938Kb - Download - Screenshot

ContactsCollector
A lot of letters on different issues (business, friends, new contacts, entertainment) can cause confusion. Then, in case of need to contact a person, you will spend much time searching for his email address. ContactsCollector will automatically add your business contacts to the address book. ... ContactsCollector automatically adds e-mail addresses for people you correspond to your Address Book of Microsoft Outlook: it checks your outgoing mail for a new email addresses, retrieves the new contact name that corresponds to the email address, and adds the contact.
http://www.stanfordtrident.com/download/ContactsCollector.zip - 3Mb - Download - Screenshot

Outlook Email Verifier
You are sure to do with the sorting of Outlook contact list, deleting old addresses that do not exist anymore, adding new ones. Usually we do not have any problems with new addresses adding but it is not so easy when it comes to the revision of the old addresses. ... b) The possibility of different address types checking (From, TO, CC, BCC). ... Is it possible to check email addresses quickly for their validity? ... Is it possible to check all email addresses in Outlook mailboxes at once? ... c) The possibility of error log viewing (for the troubleshooting).
http://www.etopping.com/download/emailverifier.exe - 879Kb - Download - Screenshot

Enterprise IP - Address Manager
Enterprise IP - Address Manager is an easy-to-use application for assigning, cataloging, and maintaining IP addresses and host data for both registered and private TCP/IP addressed networks. This open database software provides a simple interface to enable you to establish IP addressing schemes... Other features include: export and import of CSV format files, export of HTML formatted listings, printed listing reports, network diagram attachments, host configuration and revision text attachments, ping to IP, trace to IP, telnet to IP, browser connect to IP, logo branding support, interface...
http://www.enterpriseip.net/downloads/EIP-AM_Setup.exe - 8Mb - Download - Screenshot

a-Change Mac Address
Change Mac Address in seconds! Scan Mac Address within any range of IP address. Exports the scanning results from a Mac Address Lookup list. Spoofing the Mac Address of your network card to any new Mac Address. It makes ping mac address possible. Use this mac address finder to search proper mac... It scan any range of IP for the proper Mac Address. ... It checks your Mac Address inputting. ... your computer name, Mac Addresses and IP etc. ... ) It support changing mac address searching speed. ... It is not only a mac address scanner but also a spoofer.
http://amac.paqtool.com/images/amac.exe - 689Kb - Download - Screenshot

Dynamic IP Monitor
Most internet service providers assign dynamic IP addresses to their customers. This means the internet address of your computer may change every time you connect, or on certain intervals. This presents a problem if you want to access your computer. Dynamic IP Monitor checks for changes in... ] Note: Dynamic IP Monitor connects to a page on the web to obtain external IP address, you may have to allow this (and the update methods you will use) in your firewall. ... txt file to obtain the address of your server [database, web, mail, ftp, etc...
http://www.guldendev.com/Install_Dynamic_IP_Monitor257_Demo.EXE - 319Kb - Download - Screenshot

Site Status Checker
Site Status Checker is an Internet Software that includes in one place, several Internet tools like: Site's List Management, Traceroute, DNS Lookup, Finger, WhoIs, FTP Client, Internet Browser and Time Synchronize. Site's List Management is a feature that allows you build many fully customized... DNS Lookup let your resolve host name from IP address or resolve IP address from domain or host name. ... You can also Ping any Internet address to check if is alive, synchronize your computer clock with GMT time, and use Finger and WhoIs Internet services.
http://www.sprintbit.com/files/sschecker1.exe - 7Mb - Download - Screenshot

Advanced Email Verifier
Advanced Email Verifier (AEV) is your powerful solution for the "message delivery error". AEV is designed for system administrators, webmasters, programmers as well as for those advanced users who have their own mailing lists and need to keep them up-to-date. ... This happens because the appropriate mail servers receive all the messages regardless of whether the email address is valid or not, and then return the message if the email address doesn't exist anymore. ... AEV verifies every email address from a mailing list or database and determines up to 70-80% of "dead" email addresses.
http://mirror1.glocksoft.com/aev.zip - 4Mb - Download - Screenshot

Actual Contacts for Outlook
Actual Contacts for Outlook(ACO) is a Microsoft Outlook add-in for updating your address book and monitoring validity of e-mail addresses in the contacts. Select the contacts you wish to update and ACO will send them a message containing a form to fill. ... In order to check an address, ACO imitates sending a message to this address. ... So, address verification is technically correct and cannot be noticed by the address owner. ... This program is also able to check your address-book. ... The respondents will be able to update their data in your address book by filling out the form.
http://www.mapilab.com/files/actual_contacts.zip - 3Mb - Download - Screenshot