We are running an Exchange 2013 Server with Outlook 2013 as Clients.
On some accounts we need multiple E-Mail-Addresses. We configured them in ECP and gave the users Send as and Full Access permissions for their Mailbox, just in case.
They receive E-Mails on these addresses, however, we want them to be able to send from them.
Now here's the thing:
- When they send from a secondary address in OWA, everything's working fine
- When they try to do the same in Outlook, they get a permissions Error (0x80070005-0x0004dc-0x000524)
We already waited long enough, just in case it had to do with replication.