1)   Send Personally 1.18.2
Add-in offers an alternative method of sending messages from Microsoft Outlook 2000-2010, separate message being created for each recipient. The final recipient will see only his/her name and address in the "To" field.

 2)   WorldCast 3.1.48.254
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 almost any emailing list, reporting bad email addresses, time-out operations, etc.

 3)   GroupMail :: Free Edition 5.0.0.818
Whether it be for announcing new products and services to your customers, delivering and managing newsletters, or simply staying in touch with family and friends - GroupMail :: Free Edition will make the process effortless.

 4)   Spryka ePostMailer 5.1.0.27
The Spryka ePost Mailer 5.1 let's you change the way you want to send your message, send plain text, html, or a combination of HTML and plain text. You can also customize and change the subject line.

 5)   Spryka SpeedyBlaster 2.0.1.450
The Spryka SpeedyBlaster let's you change the way you want to send your message, send plain text, html, or a combination of HTML and plain text. You can also customize and change the subject line.