Configuring On-premises Lync Server 2010 Integration with Exchange Online

To configure On-Premises Lync Server 2010 integration with Exchange Online, you need to perform below steps

Login to Lync Front End Server and open Lync Management Shell:

Configure the Edge Server for federation

Set-CsAccessEdgeConfiguration -AllowFederatedUsers $True

Configure a Hosting Provider on the Edge Server

New-CsHostingProvider -Identity "Exchange Online" -Enabled $True -EnabledSharedAddressSpace $True -HostOCSUsers $False -ProxyFqdn "exam.um.outlook.com" -IsLocal $False -VerificationLevel UseSourceVerification

Create a DNS SRV Record for Integration with Hosted Exchange

If you already have the DNS SRV record in place, have to verify the same, Run the mentioned command in cmd: nslookup <EdgePool.domain.com>

Update Central Management Store

Invoke-CsManagementStoreReplicationStatus

Verify the replication of the updated Central Management Store

Get-CsManagementStoreReplicationStatus

To check the changes were applied on Edge Server run the following cmdlet:

Get-CsHostingProvider -LocalStore