Zimbra Performance Tip For Busy Zimbra Servers – Modify updatedb Settings

Do any of these describe your Zimbra system? You have a large mail store (1TB or more) Your Zimbra system is busy with a lot of inbound and/or outbound emails every day You keep backups for a long time You believe you have plenty of RAM but you are finding …

Zimbra Patching – Recommended Best Practices 2019

During yesterday’s Zeta Alliance call, Zimbra Patching, recent Zimbra exploits and their mitigation were a featured topic of discussion.  The Zimbra forums have some very active discussions about mitigating currently compromised systems, so I thought it would be timely to summarize the current status of the current compromise, Zimbra’s reactions …

Java Improvements Make Upgrading Zimbra Attractive

Zimbra 8.8.12 quietly replaced Java 8 with Java 11, and combined with a change in Java Garbage Collectors, we are seeing significant mailbox server performance improvements just from doing an upgrade to 8.8.12. Key Takeaway If your mailbox servers are swapping but you believe you should already have sufficient RAM; …

Zimbra on Amazon Web Services – Disk Reference Architectures (Updated April 22, 2019)

During the past year I have migrated a number of Zimbra systems to Amazon Web Services (“AWS”).  These “real-world” experiences led to my being invited by Zimbra to present my AWS Hosting Best Practices at their North American Partners’ Conference in Dallas, Texas in October 2018.  (You can request a …