I'm having issues with one remote user, who is experiencing up to 30 minute delays before new messages show up in his Outlook screen. He is using ZimbraOlkConnector-3.1.1_GA_382_3.1.893.msi. The messages are showing up immediately in the web client. These are externally originating messages coming from internet mail hosts.

Is there a way to change how fast outlook sync's with the main server? Or debug any failures?

I will have him check the sync issues subfolder in outlook to see if there is any information there.

This is not typical behaviour, as we have other users who are using the plugin and have not experienced the same delays.