MagicMessage
MagicMessage for Windows lets you send and receive text messages from your PC. Key Benefits: Turns your computer into a mobile phone able to send and receive text messages. Type long text messages effortlessly from the comfort of your keyboard. Fast, reliable service with guaranteed delivery of... Sending a text message is often cheaper and more efficient than a phone call. ... They can reply with a normal text message. ... How it works Compose your text message and click Send. ... Group sending of the same message to multiple phone numbers.
http://www.textmagic.co.uk/magicmessage/magicmessage.exe - 2Mb - Download - Screenshot

Send Personally
Add-in Send Personally (SPE) is designed to send messages to a great number of recipients via Microsoft Outlook 2000-2003. Add-in offers an alternative method of sending messages from Outlook, separate message being created for each recipient. The final recipient will get no information about... You can use macros (special expressions automatically replaced by recipient's personal data when sending a message) in message text. ... However, if a message is sent to hundreds of recipients, its heading size might many times exceed the size of the message text and all attachments thereto.
http://www.mapilab.com/files/send_personally.zip - 2Mb - Download - Screenshot

Send Personally for Outlook Express
Send Personally for Outlook Express allows you to send messages to a great number of recipients from Microsoft Outlook Express. Plug-in adds a new button "Send Personally" to the toolbar of Outlook Express and offers an alternative method of sending messages from Outlook Express, separate... However, if a message is sent to hundreds of recipients, its heading size might many times exceed the size of the message text and any attachments combined. ... The main problem with sending messages to several recipients from Outlook Express is that all recipients are in the message heading.
http://www.mapilab.com/files/oe_send_personally.zip - 2Mb - Download - Screenshot

Mihov Mail Sender
Mihov Mail Sender sends the same e-mail message to more people from your address book - but it displays only their name as recipient, so they will think this mail is ment only for them. You can send message as text or HTML formatted e-mail and you can add your own attachments to the message. ... The program uses your normal SMTP mail server for sending messages and does not require an additional server. ... It surely comes in very handy for invitatitions, mailing lists, and keeping privacy!
http://download.mihov.com/mailsend.exe - 337Kb - Download - Screenshot

FAB SMS Addin for Microsoft Outlook
Need to keep in touch with your customers, staff or colleagues? Then text messaging is an excellent medium to deliver your message. Seemlessly integrated with Microsoft's Outlook ®; this Add-in allows you to text your message directly from your favourite desktop messaging client. ... Text Messaging just got a whole lot easier! ... By utilising your contacts, distribution lists and address books to resolve mobile numbers, just type the name of the recipient, type your message and click send.
http://www.fabit.com/mobile/sms/setup.exe - 4Mb - Download - Screenshot

SMSCOUNTRY SMS Mail Box
You can send sms from Microsoft® Outlook® and it is as simple as sending an email. Keep in touch with customers, staff or colleagues with this SMS add-in for Microsoft® Outlook®. Send SMS Text Messages to almost any wireless device worldwide directly from your desktop PC via Microsoft® premier... Send SMS text messages to over 489 networks in 182 countries worldwide. ... Each SMS Message costs $0. ... No additional/specialised hardware required 5. ... 6. ... Seamless integration with Microsoft® Outlook® 4.
http://www.smscountry.com/downloads/SMSCountry_outlook.exe - 3Mb - Download - Screenshot

HotMailPlus
HotMail+ program is meant for reading and sending e-mail messages through the web-interface of mail server www. hotmail. com. The main advantage of HotMail+ is that all reading and sending e-mail messages are maximum automatical. Now you do not need to enter site to check your mail. ... In other words, HotMail+ opens this site, authorizes it under your name, moves to the page Inbox , separates the text of the message from the page text and saves it in your computer. ... The program HotMail+ performs all the necessary actions for viewing and sending messages with the help of the special...
http://www.electronic-bird.com/hmp/hotmailplus.rar - 561Kb - Download - Screenshot

SpeedSMS
Sends Text SMS, ringtones and VCard to mobilephones from 7 Cents/SMS. SpeedSMS supports text messages, blink and flashing SMS. Its also possible to send SMS deferred. Supports sending SMS to multiple persons from the phonebook or sending to groups. SpeedSMS uses the SMS service of aspsms. ... com so you need a registered account there.
http://www.delight.ch/download/77/SpeedSMS.exe - 4Mb - Download - Screenshot

4t HIT Mail Privacy LITE
4t HIT Mail Privacy Lite sends and receives your private data securely hidden in images of various types. You can use your birthday photo or landscape picture to send some important message to your friend or colegue securely - our application will also use strong encrypting algorithm to make... Other people only see nice photos; you see important text message. ... It creates BMP, ZIP or HIT files and helps in sending them to the addressee. ... Currently 4t Niagara Software is finishing its powerfull 4t HIT Mail Privacy PRO, where you get a modern interface of a mail agent, address book,...
http://www.4t-niagara.com/4t-hitl.zip - 930Kb - Download - Screenshot

CRM Group Mail
CRM Group Mail is developed especially for enterprise users. It employs multiple threads technology and 'super high speed mode' to send emails in bulk. The sending can reach a rate of over 5,000 emails per minute. You can mail to thousands of people with different appellation in 'From',... You can compose HTML message with Inline Message Editor, or HTML Source Code, and you can preview HTML message in Message Preview Window inside CRM Group Mail. ... It also supports all email formats, including text-only, HTML-only, text with HTML.
http://www.fast-bulk-email.com/crmgroupmail.exe - 1Mb - Download - Screenshot