Good Morning Experts,
I'm having a rather unusual issue in Exchange 2007, to do with meeting request.
Using OWA, so as to remove Outlook client as a cause, when a meeting is created within the calendar and an invitee is set (either internal or external, using either the GAL or typing manually), the email request goes into the sender's drafts folder within OWA.
Attempting to forward this request from drafts to the intended invitee results in the forwarded request going to drafts as well.
There are no transport rules set in Exchange.
We're getting the following erros in the app log at the same time:
The store driver failed to open the message item for event 17977163 mailbox 6920296b-122f-4218-b348-f55b0cd48436 MDB d03490fc-168f-4199-bb6e-71fb2c7c16f4. An NDR won't be generated.
Also Event ID 9554:
Unable to update Mailbox SD in the DS. Mailbox Guid: 74927dc6-6748-4960-8ce1-e1cc992e6a5d. Error Code 0x80070005
Any help appreciated!