From previous article, you can configure and validate DKIM records on Zimbra which is used to increase email reputation. The configuration will increase reputation for outgoing email. But, how to enable DKIM/DomainKeys checking for incoming connection? By enable DKIM/DomainKeys checking, you can reject every incoming email who did not have DKIM/DomainKeys. By default, Zimbra only configure OpenDKIM as ..
Usually, i am configure spf to my server for outgoing purpose. The spf records are defined in public dns use txt records. But, how to enable spf checking if there connection to my server? The following is step by step how to enable spf checking for incoming connection. You need to enable cbpolicyd as in the following ..