I updated my MAC outlook 2016 yesterday to version 16.13 (1180513). After that I am able to login my EV tool bar, but when i select any archvied mail and click on View. the email is not opening as normal.
I believe that Outlook 2016 build 16.13 (1180513) is not supported. Support for 16.9.0 was introduced in EV 12.2.3 in January. See this technote: https://www.veritas.com/support/en_US/article.100041617
There is no clear indication about the supported build number in the compatibility matrix.
I suggest logging a case with Support to see if there is any fix for this.