A list of some organizations running TMDA.

• The Free Software Foundation (for @gnu.org addresses and mailing lists)

• Gmane

• Actrix Networks Ltd

• NightSky Hosting

• GeekISP

• WestPAnet, Inc

• MailSnare

• dungog.net

• Stand Blue Technology

• Open Vistas Networking, Inc

• myprivacy.ca

• 2ndmail.com

• Internet Nebraska

• eScrubber

• Department of Physics and Astronomy, University of Leicester, UK

• Stanford Computer Graphics Laboratory

• CentralPets

• Rupture Dot Net

• Paradigm-Omega

• Internet Engineering Association