Thanks Kevin, CLI not possible on this server (GoDaddy Linux).
No changes have been made on the server or config, and that the token updates,
made me think that all mail functions would work, but tokens and mail are likely
separate code so even though we have a valid token, this error seems to indicate
that the token doesn't matter, we don't even get to use it.
So port 993 has been open and used for several months, and nothing has changed
on our config. The lack of activity on tickets led me to check the token, which was
expired.
Time to migrate away from goDaddy.
Thanks,
Paul