Re: Full mailbox access on all mailboxes via web services

Web servcices (EWS) or OWA? It looks like you mean access via Outlook
works by not via OWA. Granting permissions via the database level with
AD permission "receive as" will give you ability to access the
mailboxes within Outlook; but will not work with OWA. For OWA you need
to enumerate all mailboxes via powershell and grant full mailbox
rights.


James Chong (MVP)
MCITP | EMA; MCSE | M+, S+,
Security+, Project+, ITIL
msexchangetips.blogspot.com


On Oct 27, 9:40 am, "MarioC" <mar...@xxxxxxxxxx> wrote:
Hi,

I have to grant a service account full mailbox permissions on all mailboxes
in the organization.
The service account should be able to access all mailboxes via web services
(e.g.
https://casservername.domain.local/owa/firstname.lastn...@xxxxxxxxxxxxxxxxxxxxxxxxxxxx).

Opening mailboxes via outlook works fine, but access via web services ist
not possible.
The following error appears when trying to open another users' mailbox:
"You do not have permission to open this mailbox. For access or for more
information contact technical support for your organization."

The service account has the following permissions at mailbox database level:

Send-as
Reveive-as
CreateChild
DeleteChild
GenericAll
ms-Exch-Store-Admin

are there any permissions missing to get access to foreign maílboxes via web
services ?

thanks in advance for answers,
Mario

.

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