unable to access mailbox

Question

Team

i am unable to access unified group mailbox and calendar from browser. i have already set HiddenFromAddressListsEnabled & HiddenFromExchangeClientsEnabled to $false. i am getting the below error please guide me. i am the owner as well as member of the unified group. i have send as and send on behalf permissions as well.

BootResult: accessDenied
Back Filled Errors: None
err: Microsoft.Exchange.Clients.Owa2.Server.Core.OwaExplicitLogonException
esrc: StartupData
et: ServerError
estack: Error: 500
    at Object.b [as createStatusErrorMessage] (https://outlook.office.com/mail/unifiedgroup1@contoso.com/:2:261530)
    at https://outlook.office.com/mail/unifiedgroup1@contoso.com/:2:260692
st: 500
ehk: X-OWA-Error
emsg: ErrorExplicitLogonAccessDenied
---------------------------
BootResult: accessDenied
Back Filled Errors: None
err: Microsoft.Exchange.Clients.Owa2.Server.Core.OwaExplicitLogonException
esrc: StartupData
et: ServerError
estack: Error: 500
    at Object.b [as createStatusErrorMessage] (https://outlook.office.com/calendar/unifiedgroup1@contoso.com/:2:261530)
    at https://outlook.office.com/calendar/unifiedgroup1@contoso.com/:2:260692
st: 500
ehk: X-OWA-Error
emsg: ErrorExplicitLogonAccessDenied

Answer 1

Office 365 group mailboxes should be accessed from your own mailbox not by logging on to it directly.

Answer 2

Hi,Glenn Maxwell,

Do you want to log in directly to access your group mailbox?

And what needs do you want to use group mailboxes to achieve?

As Andy David mentioned we cannot log in directly to group mailboxes, but we can use group mailboxes through authorized mailboxes. If you want to log in to the mailbox, you can create a shared mailbox and assign full access permission.

If you want to use a group calendar, you can choose it under Outlook's calendar.

Best Regards,

Dezhi

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