Zimbra Patches: 9.0.0 Patch 30 + 8.8.15 Patch 37

Hello Zimbra Friends, Customers & Partners,

Zimbra 9.0.0 Kepler Patch 30 and 8.8.15 James Prescott Joule Patch 37 are here.

These patches include the following listed in their respective releases

  • What’s New
  • Security Fixes
  • Fixed Issues
  • Known Issues

Please refer to the release notes for the patch installation on Red Hat and Ubuntu platforms.

An upgrade to the latest patch for your version is highly recommended. More information about the recommended patch can be found at:

We plan to make additional information available on our Security Center page as it becomes available.

Note: Additional configuration for further hardening your Zimbra setup can be found on the Zimbra Support Portal. It is recommended that all customers consider these additional steps 

Your Zimbra Team

7 Responses to Zimbra Patches: 9.0.0 Patch 30 + 8.8.15 Patch 37

  1. DavidD February 22, 2023 at 6:57 AM #


    i has expecting an update of the zimbra-clamav package according to:


    • Avatar photo
      Barry de Graaff February 23, 2023 at 1:34 AM #

      Yes another update for ClamnAV in Zimbra is coming soon.

  2. Ildar February 27, 2023 at 4:04 AM #


    Opening history in forwarding letter does not work when clicking on the three circles at the bottom in “modern-ui” of the letter if a patch is installed:


    Forwarding history works if installed path 29:


  3. João Dias February 27, 2023 at 4:13 AM #

    After update in modern UI the 3 dots “toggle container” to expand forwarded emails stops working.
    Anyone else with the same problem?

  4. Avatar photo
    Barry de Graaff March 2, 2023 at 12:46 AM #

    Thanks for reporting the issue, I have forwarded this issue to engineering. You can follow the issue here: https://forums.zimbra.org/viewtopic.php?f=19&t=71719&sid=65ce8e0c4f3097c5dc4f1f12c4786e06

  5. Denny March 7, 2023 at 8:04 AM #

    Has ZCO’s improved partial sync feature been tried out by anyone? It appears that only the primary mailbox is still functioning; it does not appear to be working for shared folders / mailboxes as announced.

    • Dawood Shaikh March 9, 2023 at 7:10 AM #

      Hi Denny,
      To make this work for shared folders/mailboxes, you must install the customized ZCO build by specifying -smd in the customizer (ZmCustomizeMsi.js script.) After upgrading the ZCO build to a fixed version, it is necessary to either unmount and then remount the share (Zimbra-> Share status) in the case of an existing profile or create a new ZCO profile.
      Please refer to https://wiki.zimbra.com/wiki/Zimbra_Releases/9.0.0/P30#ZCO for more details.

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