Hybrid Exchange 2010 To Hybrid Exchange 2016 - Part Two

Hi Krunal, I've followed your steps and would like to install a second Exchange 2016 hybrid server. How do I go about doing that? Is it just a simply Exchange install or do I follow some of the steps you've outlined above?

Krunal - are the steps under "Uninstall the Legacy Exchange Server" performed from the desktop of the old 2010 server or the new 2016 server?

Hi Krunal, Thank you, my question is regarding schema update. You did it in a different way because you had already hybrid deployment, right? I have four ex2010, I will introduce ex2016 and will setup co-existence first, than I will setup ex2016 as hybrid exchange and move to cloud. My current AD is configured with azure AD connect with options "Configure Hybrid AD Join". Do Still need to update schema as you have done in this article or the Normal schema update?

Hi Kunal, Thanks for the great article.I am also planning to upgrade my environment from Exchange 2010 Hybrid to Exchange 2016. I just want to make sure that can we use the different namespace for OnpremisesSmartHost(The step where it is asking to enter the FQDN of your onprem organization)? when I configured Exchange 2010 Hybrid I used mail.xyz.com so now while configuring hybrid with Exchange 2016 Can I use mailnew.xyz.com? or Do we need to go with same namespace that I used in Exchange 2010 Hybrid Configuration? I will point mailnew.xyz.com to my new exchange 2016 servers.

Hi, after completing the install of Exchange 2016, it's ECP keeps redirecting to Exchange 2010 after the login screen. I have tried https://localhost/ecp?ExchClientVer=15.1 but that does the same. I have removed any/all HTTP redirects from 2010 Exchange but that hasn't made any difference. Is it linked with Administrator mailbox sitting on On-Prem database? Is there any way I can bypass this redirect and get to Exchange 2016 ECP?

Hi. Is there any reason for disabling the arbitration and system mailboxes instead of moving them? We found several posts with different opinions - please advise.

Trying to decommission last exchange 2010 server and add the exchange 2016 and run theHybrid Configuration Wizard I came across the HCW8078 below error. Microsoft.Exchange.Migration.MigrationServerConnectionFailedException The connection to the server ‘webmail.domain.com’ could not be completed. Microsoft.Exchange.MailboxReplicationService.MRSRemoteTransientException The call to ‘https://webmail.domain.com/EWS/mrsproxy.svc’ failed because no service was listening on the specified endpoint. Error details: There was no endpoint listening at https://webmail.domain.com/EWS/mrsproxy.svc that could accept the message. This is often caused by an incorrect address or SOAP action. See InnerException, if present, for more details. –> Unable to connect to the remote server –> No connection could be made because the target machine actively refused it 202.183.94.21:443

Hi Krunal, When i run get-Orgconfig i can see the name like prod no FQDN? so can i add external domain name or internal domain name?

Hi Krunal All mailboxes are in 0365. Have ADFS and ADSync Servers. We have configured Internal DNS, point all exchange virtual url's to point to F5 internal load balancer. Ex: OWA Internla Url: webmail.internalname.com External Url: webmail.external.com Current 2010 Exchange use the Selfsign certificate. But this got the above Internal/external domain added. So can i use this self signed for SMTP relay in 2016? currently it is working. But do i need a SSL? Do i need to re run the HCW? I thought we need this server only for SMTP and management? If i need to re run , can i use the self sign in Transport certificate? How do i find current Organizing FQDN configured for?

We have migrated ALL of our mailboxes to Office 365 and will not have any on premise. We have set up a exchange 2016 just for management and smtp relay. Do I still need to import a cert since no client should be hitting it? Should my ex2016 box internal autodiscover point to Office 365 autodiscover or the existing internal autodiscover? Thanks for putting this article together.

I am still trying to understand the part about importing the certificate. I believe you said that we just need to include the new FQDN in that certificate them import it. I read in other sites that they seem to export the existing Exchange 2010 certificate then import it on the new Exchange 2016 server. How is that possible and/or do you have any concerns against it?

Can I reuse IP for SMTP relay connector?

Is it possible to decommsion the Exchange 2010 server before adding the Exchange 2016 server? I am asking because we have an Exchange 2010 SP2, and we can?t update it due to the fact that our domain controller are 2019 and domain functional level is 2016.

After migrating all mailboxes to office365 with hybrid exchange 2010 on premise server I want point dns to office365 urls not exchange 2010 server but I'm not sure how to do that with hybrid configuration. Can you help me with that? users have outlook 2016 clients.

After Migrating the mailboxes from 2010 to office 365, the decision to install a 2016 exchange server was made, following the decommissioning of the 2010 and commissioning of the 2016 we can no longer see any of the mailboxes groups resources contacts shared migration, everything is on the cloud, and users can access and use the mailboxes groups etc... the problem we have is that it is not possible to modify the mailboxes email addresses we get the error The operation on mailbox "wxyzl" failed because it's out of the current user's write scope. The action 'Set-Mailbox', 'EmailAddresses', can't be performed on the object 'AdminNational' because the object is being synchronized from your on-premises organization. This action should be performed on the object in your on-premises organization.

Hi how can we move mailboxes from exchange 2010 (some of the mail boxes are still on exchange 2010)

What about just moving Exchange (already hybrid, same version) to new hardware? Install, move Mailboxes, decomission the old one and run hybrid Wizard from the new one? or are there other things to consider? Regards.