Suddenly no Tickets were generated. I looked into the Remote Mailbox Settings (we use outlook.office365.com, IMAP Protocol) and the "Token" was outdated. We used this to setup the Microsoft OAuth2 Authorization for osTicket and it worked for month, now when I click on "add" again it connects me with the microsoft account, then sends me back to osTicket but I see the following error:
array ( 'code' => 'MailboxNotEnabledForRESTAPI', 'message' => 'The mailbox is either inactive, soft-deleted, or is hosted on-premise.', )
Strange thing is when I use a private E-Mail Adress it works but not with our "Superadmin" E-Mail. Any idea?