I can confirm that we have the exact same problem with the "permanent spinner" as Marcin, if we try to automatically log in a user using the autologin example from the documentation and if this user hasn't completed the timezone and backup email dialog.
I see in the reference documentation that there will be an autologinToken and an autoLoginUrl on the authenticate user API call:
mail.smartertools.com/documentation/api#/reference/SmarterMail.Web.Controllers.Api.AuthenticationController/AuthenticateUser
This would be the perfect solution because we could do an authenticateUser API call an on success, redirect the user to the autologinUrl with the autologin token and avoid this fiddling with the intermediate webpage with the credentials in cleartext in the javascript code.
Unfortunately this has not been added to the latest 16.3.6698 build yet.
Any news on when this will be available?
Thanks in advance