Outlook additional mailbox not updating

var microsoft = microsoft

You can also use the shared mailbox as a shared team calendar.The shared mailbox is also 7.5Gb I am thinking this may be the issue now that Im contemplating more clearly.if so how can I arhcive a Shared mailbox messages but still get all users who access the box access to the archives Hello, This is a common issue with large shared mailboxes when Outlook is in cached mode.Office 365 account has read and manage (plus send email from and on behalf) permissions to another mailbox.I've setup the office 365 account in outlook 2016 using autodiscover which all works ok.