Step 2: Add DNS Entry of Vaultastic in Zimbra

  1. Verify if Zimbra server connects successfully to Vaultastic connector on port 25.

    To confirm the connectivity, use the Telnet command as mentioned below.

    telnet 25

  2. On successful connection to the Vaultastic server, you will receive a message as shown below

    Connected to
    Escape character is ‘^]’.
    220 archive ESMTP Postfix-VaultasticConnector

  3. If you could not connect to Vaultastic server successfully, an error message will be displayed on the screen as shown below Unknown host

  4. Possible causes are

    • The DNS Lookups option is disabled. The DNS Lookups option is displayed under the MTA tab of the admin console or with zmprov.

    • DNS service is missing on Zimbra server

    In above cases, Zimbra uses /etc/hosts, based on the entries on the “hosts” line in /etc/nsswitch.conf file

    To resolve this add DNS entry for Vaultastic in the /etc/hosts file.

    Open the /etc/hosts file and enter the IP address of Vaultastic server as mentioned below

    {ip of vaultastic} {domainprefix}

    To find out the IP address of Vaultastic server,

    • Go to the site

    • Type in the DNS Lookup box.