Using Catch All Email Addresses

A catch-all email address is an address that is used as a fall-back for when no other recipients are available. Ergo, it is the email address that receives all email for a domain that isn’t already delivered to other users or groups or shared folders. A default Kolab environment is not configured to facilitate catch-all […]

Relay Outbound Mail Through a Third Party, Using Postfix

John Doe administers a Kolab Enterprise installation, but the complete environment for what we’ll call “example.com” involves server systems hosted by third parties — such as a web server for the corporate website, and maybe other application servers. This article outlines the possible solutions to one or more of these environments being restricted somehow.

Configure DKIM Signing and Verification Using Amavis

Domain Keys Identified Mail (DKIM, or Mail Identified through Domain Keys) is a cryptographic technology using which domain owners publish the public keys of public-private key pairs used for signing email messages. This allows third parties to establish a degree of confidence about the message originating from designated and duly authorized infrastructure. In other words, […]

Public and Shared Folders

Public folders, aka. shared folders, are folders used to share information between multiple users or groups of users. As they are separate from any one individual user’s mailbox, with public and shared folders it does not matter who leaves or joins the team, group or organization. The user’s mailbox may be deleted, but Public folders […]

Manage the Size of the 389 Directory Server Changelog DB

In a replicated LDAP environment that uses 389 Directory Server or Red Hat Directory Server, replication masters maintain a record of changes that are to be pushed out to replication slaves. This changelog can principally grow indefinitely, and it is therefore advised to allow it to only contain the changes for a limited period of […]