High Speed Verifier   
http://www.mailutilities.com

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 highest performance can be achieved. HSV detects about 20-30% of invalid addresses in a mailing list, though theoretically it is possible to detect up to 60-70% using a software product. This figure seems relatively small, but actually it might make 10% of a list. Besides, HSV provides for optimal checking mode in terms of time and data traffic. 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.

Actual Contacts for Outlook   
http://www.mapilab.com

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. The respondents will be able to update their data in your address book by filling out the form. This program is also able to check your address-book. It takes it a few minutes to inform you about the contacts that contain invalid email addresses. The add-in also supports validation of the recipient list in Mail Merge Mode in Microsoft Outlook and Microsoft Word (a mail merge function is prerequisite for version 2002 or later ones). In order to check an address, ACO imitates sending a message to this address. When the server confirms or doesn't confirm the existence of this address, the program cancels message sending and finishes the session correctly. So, address verification is technically correct and cannot be noticed by the address owner. Now Actual Contacts has the full functionality of Contacts Verifier which was earlier offered as a separate solution. Tasks that can be solved with ACO: 1) Updating your contacts. This is the main purpose of the program. To do it, just specify parameters and send the update request. 2) Collecting additional information. It often happens that new contacts are acquired during after exhibitions and seminars where you may only have managed to note their names and e-mail addresses. ACO will help you to collect the missing information quite easily! 3) Simple surveys. Customizable templates (with different fields included in the form) make the program a simple to use information tool. 4) Updating your contact information in your respondents' address books. You can add information about yourself in the VCard format to your update request. Almost all e-mail clients and mobile devices can import this information into their contact lists.

Add Contacts   
http://www.mapilab.com

Add Contacts automatically adds e-mail addresses to the contacts folder when you reply to a message and/or send a new message. This will help you avoid losing addresses of people you correspond with. Moreover, the collected addresses can be used for mail filtering. For example, you can use the Rule Wizard to have messages from certain senders (whose addresses are in the address book) placed in a separate folder to ensure that their message will be dealt with greater priority and no important messages will be lost with deleted spam. Some spam filters also check the contact folder to rule out erratic responses to recognised senders. When a contact is being created, the add-in attempts to detect the name corresponding to the e-mail address automatically. So, if you have received a message from the address "John Smith" [smith@mail.com], the new contact created by the program will be named John Smith. However, if name detection fails, the add-in attempts to retrieve it from the message body itself. For example, if your message begins with the string "Dear John, :", the program will automatically extract the name from the greeting and create a contact named John. You can disable automatic name detection in the program settings. You can also enable the option - category assigning of created contacts. If a category is assigned to a message while sending, the same category will be assigned to the created contact. You can choose any folder as the contact destination, either in your personal mailbox or in public folders on Microsoft Exchange server. When adding a contact, Add Contacts checks the folder for possible duplicates. In the program settings, you can also instruct Add Contacts to search for contact duplicates, over all contact folders in your personal mailbox besides the specific destination folder. Designed for Microsoft Outlook 2000, 2002/XP and 2003.

Internet Email Address Extractor   
http://www.mazepath.com

... automatically extract addresses from the internet! No more expensive mailing lists! A simple yet invaluable tool that can automatically dig out all of the email addresses from web pages, text files, and even scripts! You set the search words and parameters! Full database support: Sort, Edit, Add, Delete, CSV and Text Export!. Great for mailing lists and mail merge. Unbeatable speed, flexibility, and PRICE!

Email Address Juggler   
http://www.mirage-avm.com

Email Address Juggler is a great program for sorting-out large numbers of email addresses. It's perfect for keeping your friends, customers or club members up to date. It has plenty of time-saving tools for loading, splitting and merging lists. If somebody decides they want out from a list, add them to the removals list to make sure that you don't bother them again. When you've got your list ready, use the built-in international spell-checker to check your message and then send it out with a click of the mouse. IMPORTANT: This is not spamming software. Juggler must never be used for sending offensive messages or unsolicited promotional material. The program contains features to help combat spammers!