You may want to check the version of the Webex Productivity Tools on your Mac to see if a new update is available.
The final release for Productivity Tools for Mac will be 41.5 as Microsoft plans to block injection-based plugins on Mac Outlook beginning in mid-May. Mac based Outlook customers who wish to use Webex should move to the Cisco Webex Scheduler.
Webex Productivity Tools is a separate package from the Webex Meetings desktop app from 39.10. Productivity Tools no longer supports integrations with IBM Lotus Notes, IBM Sametime, Microsoft Lync, Internet Explorer, and Skype for Business from 41.2.
To check the Webex Productivity Tools Version do one of the following:
If your installed version is not the latest version listed on your site, select Download under "Productivity Tools" on the Downloads page of your Webex site to download the latest version.