I have a hybrid 2010 deployment with 80% of mailboxes on office 365,
I also use a mimecast mail filtering smart host that all our inbound/outbound mail flows through.
We are currently cancelling/moving away from the smart host and I need to change mail flow/MX records to send mail directly to 365 instead of the cloud provider then if the mailbox is on premise it will get sent from 365 to on-premise.
However on 365 portal under inbound connectors there is no internet inbound option with any authentication methods etc just partner and hybrid options.
Can someone tell me how I create a recieve connector on 365 that will accept anonymous internet mail?
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