Zimbra Forums

I am pretty late to the party and am planning to migrate from CentOS 7 with Zimbra 9 to RHEL9 Zimbra 10.1.
My approach is to upgrade CentOS 7 to...

Zimbra have created ZBUG-4827 in response to a Support Case we opened where we observed Java was consuming 100% of a mailstore's CPU, sometimes for...

Hi,

made a new installation of Zimbra 8.8.15 and Z-Push Zimbra Backend.

Zimbra is working properly, but synchronization with z-push is extremely...

On the old versions (5 and 6) works semi regex search syntax.

banana*float
w*bandanna
banana?boat

Can't see this working that on 8.8.15_GA_4545....

Subject: Experiencing HTTP ERROR 504 - Need Assistance

Greetings,

I hope you're all doing well. I've recently encountered a recurring issue when...

ZCS FOSS 10.1.16 - Security fixes and embargoed commits

This thread will study ZCS NE 10.1.16 (released on February 04, 2026) security fixes and...

We are observing a serious inconsistency in how Zimbra enforces the authenticated sender depending on the mail client.

When a Zimbra mailbox is...

Hey everyone,

I'm running into a limitation with Zimbra's built-in Out-of-Office (Vacation) feature: it only allows you to set a single auto-reply...