Mail configuration with aliasses in Office 365

Mail configuration with aliasses in Office 365

We have recently migrated to Office 365 but are having problems with assigning incoming emails to the correct business unit since then.


We have a mailbox ' support@company.com' which we have setup in the global mail server settings.
In one business unit we have setup this email address as the incoming email address.

For another business unit we have added an alias ' more-support@company.com' to the mailbox in Office 365. This email address is setup as the incoming email address for this business unit.

Unfortunately, all emails are imported in the the first business and none are routed to the 'More Support' business unit.


We've tried using different mailboxes, but there is only one email address to setup in the global mail server settings, so that's not an option.


Does anyone know how we have to setup Office 365 to get the import working in the right business units?
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