Solved : Zimbra Chat Problems after Patching

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Another problem on Zimbra 8.8.15 is Zimbra chat. This problem occurs after patching to P6. When you login to Zimbra Webmail, you will get this error

in the mailbox.log, you will find this error

com.zimbra.common.service.ServiceException: unknown document: ZxChatRequest
	at com.zimbra.common.service.ServiceException.UNKNOWN_DOCUMENT(
	at com.zimbra.soap.SoapEngine.dispatchRequest(

As mentioned in the Zimbra forum, the problem can be resolved by following the steps below

mv /opt/zimbra/lib/ext/openchat/zal.jar /tmp
cp -rp /opt/zimbra/lib/ext/zimbradrive/zal.jar /opt/zimbra/lib/ext/openchat/zal.jar
su - zimbra
zmmailboxdctl restart

If you can’t find zal.jar, please install zimbra-drive first

yum install zimbra-drive (for CentOS)
apt install zimbra-drive (for Ubuntu)

Then, you can copy zal.jar from the zimbradrive folder as mentioned above.

Good luck 🙂


  1. It doesn’t work. I don’t have an “openchat” folder in /opt/zimbra/lib/ext/ at all and all these commands give an error. I have zcs-NETWORK-8.8.15_GA_3869.RHEL7_64 installed. When I try to install zimra-chat, I get an error:
    Error: zimbra-chat conflicts with zimbra-talk-
    Error: zimbra-talk conflicts with zimbra-chat-
    For reference I have this:
    zimbra-drive…FOUND zimbra-drive-
    zimbra-chat…NOT FOUND
    zimbra-talk…FOUND zimbra-talk-

  2. This works perfect ! Maybe in my case ZeXtras exploded and i had to reinstall it, but the method works.

    Thank you !!!

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