Zimbra Messaging Server Complete Course

Discover how dns resolves domain names to ip addresses from local cache to root and name servers. Learn about a records and mx records that enable access and email delivery.

Explore SMTP, IMAP, and POP3 email protocols, learn how they send or receive messages, leave messages on the server or download mail, use ports 25, 587, and 465 with SSL.

Discover how DNS records govern email delivery for Zimbra messaging server, including A records, MX records, and reverse DNS, plus SPF and DKIM to verify sender authenticity and troubleshoot issues.

configure the firewall with firewalld to allow zimbra services and required ports, confirm the services are running, add necessary ports for zimbra to function, and verify changes after reboot.

Configure zimbra disk space monitoring by adjusting the 85 percent warning and 95 percent critical thresholds with local config, and set alert interval and email destinations for notifications.

Monitor mailbox quotas in Zimbra Messaging Server using admin console and command line, set limits, warn at 20 percent, and extend storage with a logical volume group.

Configure and monitor authentication failures in Zimbra by setting audit thresholds for IP accounts, single IP, and total failed attempts, and receiving email alerts.

Create a new account on the Zimbra server, set a password, verify it via the admin console, and log in with the updated credentials.

Master managing Zimbra aliases by creating and deleting aliases, using short and full commands, and verifying alias creation and deletion in the admin console.

Integrate the peacemaker with the RBD service to complete the cluster setup, configure the floating IP, RBD resources, and verify the failover readiness.

Configure DKIM in Zimbra by generating a DKIM key pair, choosing a selector, publishing the public key as a DNS TXT record, and testing verification to ensure mail authentication.