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DaleCraft
Level 1 Contributor

O365 Migration and Self-signed certificate

About to move a customer that has on-premise Exchange 2016 to O365 w/Exchange Online. Only 15 mailboxes. They are currently using a self-signed certificate. Do I need to purchase a public SSL cert to migrate this customer? And if yes, would we need to renew when it expires?

Thanks,

Dale

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