I have experiencing some odd issue regards to exchange ActiveSync (EAS) from qqmail apps on andriod devices.
couple of account was EAS was disable but user still can login to mailbox via qqmail on android. upon login, mailboxes are able to sync new email and sending out email without issue.
we have tested positive result on outlook for android, and ios app. this issue happen only on adroid device especially qqmail.
any knows how to completely disable mailbox from logging in to mobile app.
Thank you in advanced.