After install/deploy ZeXtras chat, you can backup the history of chat (include buddy list) on ZxChat and restore them if someday you need to restore. This method also used after migrating Zimbra to Zimbra that usually i am doing in my client who use ZxChat (in old server). Please backup zxchat folder that located in /opt/zimbra/conf/zextras. If you want to restore ..
After success backup mailbox as described from previous article on this section : Zimbra Tips : How To Backup Mailbox Daily, Weekly and Monthly, you could restore the backup mailboxes with zmmailbox command who has been provided by Zimbra. The example command is like below : su – zimbra -c “zmmailbox -z -m username postRestURL ‘//?fmt=tgz&resolve=reset’ ..