Contact Info

The best way to get in touch with The Horde Project and it's community depends on your needs. We have the following options:


We have numerous mailing lists to help answer your questions, and are also availble on the #horde channel on freenode. See the support page for more details on IRC.

Security Concerns

If you wish to contact us regarding a potential security concern. Please see our security reporting procedures at

Consulting Services

If you are looking to contact us about possible consulting servcies or other custom work, you may contact us at You can also view our Services page for more information.

Postal Mail

Horde, LLC
P.O. Box 79322
Atlanta, GA 30307
United States


USA:  +1.404.475.4830  (English)
Germany:  +49.521.4469.8995  (English, German)

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The Horde Project @jimmykat Do they use an iTip capable client? If not, the link should work w/o login Unless you use some SSO like with Plesk/cPanel.
4 hours ago     

Matt Irons @hordeproject Hi.When emailing cal invites,ppl click on "accept" takes them to Webmail log in (which they don't use). How can I fix this?Ty
4 hours ago     

Dainius Grincevicius #horde #hordeproject or #roundcube . Tough one :)
2 days ago     

Paul Raworth Bennett @hordeproject thanks! Problem solved. Have a great day
3 days ago     

The Horde Project Crowd funding campaign to add ActiveSync v16.0 support! Please consider supporting the development of this feature!
5 days ago     

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