Is there a Linux collaboration tool that integrates well with Microsoft AD?

A single centralized directory infrastructure that integrates with the organization's enterprise applications reduces complexity, management overhead and costs. Given the popularity of Active Directory and LDAP-based directories, many developers of collaborative applications offer these integrations as standard features. Linux messaging and collaboration products that integrate with Microsoft Active Directory include IBM Lotus Notes/Domino, Novell GroupWise, Kerio MailServer and the Scalix Email and Calendaring Platform. You will want a thorough understanding of the degree to which these products integrate or interoperate with Active Directory and LDAP-based directories. Specific questions along the following lines will help provide clarity.

• Is Active Directory integration present in the application?
• If so, is Active Directory the master directory for the application?
• If changes to a user record are made in Active Directory, are they reflected in the application?
• Does the application integrate with advanced Active Directory capabilities such as account provisioning, authentication, single sign-on and user management?
• Which LDAP-compatible directories are certified against the collaborative application?
• If changes to a user record are made in the LDAP directory, are they reflected in the application?
• Does the application integrate with services coordinated through the LDAP directory such as account provisioning, authentication, and user management?
• What migration services are offered to plan and execute the transition from Active Directory to an LDAP directory for the collaborative application?

You can search for additional collaborative applications on Linux on the Red Hat Solutions catalog and at various online application catalogs such as Knowledgestorm.