Zimbra

To block all emails from a specific domain in Zimbra, run the following commands as user zimbra (su – zimbra). To block a specific email address, run How to unblock If you have blocked a domain or email address and want to unblock, you can use Example Back to zimbra

When you are using the Zimbra mail server behind NAT with Split DNS, you need to disable dnscache service. To view all enabled/installed services, run zmprov gs `zmhostname` zimbraServiceEnabled zimbraServiceInstalled Example zimbra@mail:~$ zmprov gs `zmhostname` zimbraServiceEnabled zimbraServiceInstalled # name mail.serverok.in zimbraServiceEnabled: amavis zimbraServiceEnabled: antivirus zimbraServiceEnabled: antispam zimbraServiceEnabled: opendkim zimbraServiceEnabled: logger zimbraServiceEnabled: ldap zimbraServiceEnabled: mta zimbraServiceEnabled: … Read more

When you install Zimbra on a server behind NAT, your public IP is not configured in the server, instead, it gets routed to the server using NAT gateway. Zimbra wants the IP address of your MX record present in the server. To solve this problem, we can use Split DNS. When you check the IP … Read more