ETOYI Technology Co., Ltd.
Targeted bulk email marketing software: direct email sender verifier - send verify bulk e-mail address, email finder spider extract e-mail from 88 search engines & any website,
http://www.email-tool.com/

ITtoolbox Linux
ITtoolbox Linux Knowledge Base provides the latest community-generated content from the IT market. Share knowledge with your peers and work together to form experience-based decisions.
http://linux.ittoolbox.com/

Vote4Mail
Email filter and checker that will preview all new email messages. View the contents of the email message, before it gets to the email program. [Win95/98/Me/NT/2000]
http://www.vote4mail.com/

Constant Contact
The Constant Contact Learning Center provides online email marketing resources, webinars, and tutorials that include information on how to build an email list and create an HTML email campaign.
http://www.constantcontact.com/email-marketing-resources/hints-tips/index.jsp

Safe2Read Supervised Children's Email
Internet Safety - Email for Kids - Safe2Read - Safe, supervised email for children. Safe kid email account. Supervised email for parents who care. Safe2read allows you to allocate everyone in your family their own email account, with a level of supervision appropriate to their age. You need to decide ONCE that each of your childs email friends is suitable - after that you are only alterted when strangers come calling
http://www.safe2read.com

Innovative Technology Concepts
Exchange recovery software for corrupt and inconsistent database files. Dirty Shutdown repair and deleted email recovery utility. Forensic e-discovery email extraction utility.
http://software.innovativetechnologyconcepts.com/

Trenchless Technology Email Forum
A non-commercial, non-profit, free, and unmoderated list for the interactive discussion of all areas related to trenchless technology.
http://lists.topica.com/lists/trenchless/

Self Destructing Email
Users get free return email notifications, and/or SMS/ICQ instant messages when email they've sent gets opened, and can track their emails reading history
http://www.self-destructing-email.com/

BoogieTools, Inc.
BoogieTools products allow you to recognize and categorize thousands of email bounce formats. Easy to use, robust, fast, and powerful.
http://www.boogietools.com

Mail Utilities
Email marketing: bulk email, email extractor & mailing list management. Email related news and software products (Advanced Mail list Verify, Advanced Email Extractor, Advanced Direct Remailer).
http://www.mailutilities.com