Outlook App on Android receive notification but email not there

Paul
1
Reputation point
Using Outlook App on Android 12, Connected to Company M365 email accounts.
Receive a toast & sound notification of new email, however, if you select the notification or open the outlook app, the email is not there
It can take up to an hour sometimes longer for the new email to appear in the inbox.
Is there something which can be changed on either client or server side to ensure the emails are received at the same time as the notification?
Regards