This list has been compiled from postings on the qmail mailing list. Please email me with any additions or corrections.
| Site or Company Name | Description | Estimated Size |
|---|---|---|
| OneList / eGroups | Web-based Mailing List Server | |
| Yahoo | ||
| InterNIC / Network Solutions Inc. | ||
| RIPE | Manages EU IP address space | |
| XOOM | Uses a heavily modified version of qmail. | |
| Hotmail | Outbound traffic only | |
| USA.net | Outbound traffic only | |
| MatchLogic | ||
| Telenordia (includes Algonet) | Swedish ISP | 300,000+ users |
| gmx.de | German freemail site | |
| NetZero | ||
| Critical Path | Millions | |
| U S West.net | 400,000 mailboxes | |
| PayPal / Confinity | ||
| hypermart.net | Free business hosting | 1000s of domains |
| casema.net | Cable ISP in Netherlands | |
| fsmail.net | Web based email service for UK's largest ISP Freeserve | 100,000 mailboxes and growing |
| listbot.com | Web based mailing list server | 25+ million users, 6+ million messages/day |
| IE Domain Registry | ||
| Blue Mountain Arts | Animated Greeting Card Site | |
| MP3.com | ||
| BRIEFME.com | Custom e-mail newsletter distributor | 2 million newsletters per week |
| FutureQuest | Internet presence provider | 9,000+ domains |
| Easynet group | England, France, Germany, Spain, Japan, Belgium, Netherland, ... ISP | 15,000 domains, 100,000 mailboxes |
| DirectNIC | Email forwarding for DirectNIC customers | 100,000 domains, 200,000 forwards |
| poczta.interia.pl & poczta.fm | 250,000 mailboxes | |
| Rediffmail | Indian webmail service | 10,000,000+ users |
| Globe Internet | Czech Hosting Service | 9,000+ domains and 42,000+ mailboxes |
| pair Networks | Webhosting company in Pittsburgh PA | Over 150,000 websites and upwards of 500,000 mailboxes |
Last updated 2002-09-24