If you guys are using Google's Chrome as your web browser, then may I suggest getting this extension here:
https://chrome.google.com/webstore/detail/forum-alerts/leiehnemnmkljaaahpadjodmghkhlhjj
As the extension explains:
Since OTz is an XenForo based forum, having this extension can be of great help for you.
I personally use it as most my forums run on XenForo, and I love being notified of new private messages or notifications when I am away on another website/tab etc.
This is just a heads up!
https://chrome.google.com/webstore/detail/forum-alerts/leiehnemnmkljaaahpadjodmghkhlhjj
As the extension explains:
This extension allows you to be notified when you get a new alert or personal conversation on any XenForo site that you visit while logged in.
It does not require your username, email, or password for the site. The only data is uses is the page content. Every few minutes it checks each of the sites it picked up as using XenForo software for new alerts.
Since OTz is an XenForo based forum, having this extension can be of great help for you.
I personally use it as most my forums run on XenForo, and I love being notified of new private messages or notifications when I am away on another website/tab etc.
This is just a heads up!