Decommissioning Exchange 2016 Server

26th of June, 2017 / / 2 Comments

I have created many labs over the years and never really spent the time to decommission my environment, I usually just blow it away and start again.
So I finally decided to go through the process and decommission my Exchange 2016 server in my lab environment.
My lab consisted of the following:

  • Domain Controller (Windows Server 2012 R2)
  • AAD Connect Server
  • Exchange 2016 Server/ Office 365 Hybrid
  • Office 365 tenant

Being a lab I only had one Exchange server which had the mailbox role configured and was also my hybrid server.… [Keep reading] “Decommissioning Exchange 2016 Server”

Send mail to Office 365 via an Exchange Server hosted in Azure

24th of February, 2017 / / No Comments

Those of you who have attempted to send mail to Office 365 from Azure know that sending outbound mail directly from an email server hosted in Azure is not supported due to elastic nature of public cloud service IPs and the potential for abuse. Therefore, the Azure IP address blocks are added to public block lists with no exceptions to this policy.
To be able to send mail from an Azure hosted email server to Office 365 you to need to send mail via a SMTP relay.… [Keep reading] “Send mail to Office 365 via an Exchange Server hosted in Azure”

Exchange Server 2016 in Azure

23rd of February, 2017 / / 13 Comments

I recently worked on a project where I had to install Exchange Server 2016 on an Azure VM and I chose a D2 sized Azure VM (2 cores, 7GB RAM) thinking that will suffice, well that was a big mistake.
The installation made it to the last step before a warning appeared informing me that the server is low on memory resources and eventually terminated the installation, leaving it incomplete.
Let this be a warning to the rest of you, choose a D3 or above sized Azure VM to save yourself a whole lot of agony.… [Keep reading] “Exchange Server 2016 in Azure”

Exchange Server 2016 install error: “Active Directory could not be contacted”

23rd of February, 2017 / / No Comments

I recently worked on a project where I had to install Exchange Server 2016 on an Azure VM and received error “Active Directory could not be contacted”.
To resolve the issue, I had to complete the following steps;

  1. Remove the Azure VM public IP address
  2. Disable IPv6 on the NICipv6-disabled
  3. Set the IPv4 DNS suffix to point to your domain. If a public address is being used it will be set to reddog.microsoft.com by default.dns-suffix

Once done the installation could proceed and Active Directory was contactable.

Completing an Exchange Online Hybrid individual MoveRequest for a mailbox in a migration batch

29th of November, 2016 / / 14 Comments

I can’t remember for certain, however, I would say since at least Exchange Server 2010 Hybrid, there was always the ability to complete a MoveRequest from on-premises to Exchange Online manually (via PowerShell) for a mailbox that was a within a migration batch. It’s really important for all customers to have this feature and something I have used on every enterprise migration to Exchange Online.

What are we trying to achive here?

With enterprise customers and the potential for thousands of mailboxes to move from on-premises to Exchange Online, business analyst’s get their “kind in a candy store” on and sift through data to come up with relationships between mailboxes so these mailboxes can be grouped together in migration batches for synchronised cutovers.… [Keep reading] “Completing an Exchange Online Hybrid individual MoveRequest for a mailbox in a migration batch”

Exchange Server 2016 Hybrid upgrade considerations

7th of March, 2016 / / 9 Comments

Exchange Server 2016, RTM as of October 2015, is still very much freshly baked having just come out of the oven from Redmond. Two recent projects that I’ve worked on have required me to consider deploying it as the “Hybrid” server (not an actual role- I’ll get to that later) for integration and coexistence with Office 365 Exchange Online.

With anything new there is a learning curve as to how the new product now works (not that dissimilar from previous versions of Exchange Server) and what will work with the existing environment to not compromise service.

There is an unwritten assumption that is made in our hybrid guidance that you have already properly deployed and completed the coexistence process with the current versions of Exchange in your on-premises environment.

– The Exchange Team

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