It seems improved for sure. I deleted an email and the whole screen did NOT refresh as with the previous version. Thank you for that. 

 

I do have two main errors. When I did the upgrade I did a full uninstall, reboot, and install. Are there settings that I need to do for the 401?

 

401

/api/v1/auth/authenticate-user Failed to load resource: the server responded with a status of 401 (Unauthorized)

 

404

Failed to load resource: the server responded with a status of 404 (Not Found)

 

With 16.x I found out that at the user profile all telephone/mobile/fax numbers are lost. But when setting up more than 2 numbers only 2 numbers will be saved. How could this be solved? These settings are important for the signatures.

 

And with this actual release there is an advanced search available (click on folder icon at the bottom). Thank you very much to SmarterTools for implementing. It works but it's slow comparing to the search in SmarterMail 15.x and earlier and you can't open a mail from the result list by double clicking the items - you have to select it, scroll up and click on the Open button. This isn't very user friendly and I think that a search should be accessible at a more prominent place because it's a often used function.