Demystifying Hybrid Free/Busy: Finding errors and troubleshooting

In this second part of the Demystifying Hybrid Free/Busy, we will cover troubleshooting of Hybrid Free/Busy scenarios, more specifically – how and where to find an actual error that will indicate where the problem is. Before venturing forth, please make sure that you have seen Part 1 of this demystifying series! Here is the graphics…


Demystifying Hybrid Free/Busy: what are the moving parts?

Hybrid Free/Busy is one of those things that many people do not fully understand. If everything works well, the complexity is hidden from view and people working in various parts of organization can seamlessly work together. But if things go wrong… you will appreciate deeper understanding of what makes it work. This is why we…


Exchange Server TLS guidance, part 1: Getting Ready for TLS 1.2

Update: With the Office 365 deadline to have TLS 1.2 enabled being moved from March 2018 to October 2018 we have changed the timing of subsequent post releases; please see below! Overview As the realm of security in technology continues to evolve over time, every so often we say hello to newer and more competent…


Exchange Log Collector Script

A while ago I created the “CollectLogsScript” (see my old A better way to collect logs from your Exchange servers blog post) which I have since rebranded to “ExchangeLogCollector”. Seeing that this has proven popular, I have continued to make some major improvements to the script over the years. The script was recently moved over…


Permanently Clear Previous Mailbox Info

We are introducing a new parameter that can be called by using the Set-User cmdlet in Exchange Online PowerShell. The feature is focused for customers doing migration of on-premises mailboxes to the cloud and you will be able to use it within three weeks or so (Edit 1/19: we updated this due to slower than…


The case of Reply Log Manager not letting lagged copy lag

In a previous blog post Ross Smith IV had explained what the Replay Lag Manager is and what it does. It’s a great feature that’s somewhat underappreciated. We’ve seen a few support cases that seemed to have been opened out of the misunderstanding of what the Replay Lag Manager is doing. I wanted to cover…


The many ways to block automatic email forwarding in Exchange Online

In support, I get this question quite frequently: “How do I block users from auto forwarding their mail outside my environment?” There are plenty of good reasons you may not want auto forwarding: you may have HIPAA laws to follow, regulatory compliance or data privacy concerns or simply because it makes you uncomfortable. A user…


PAW your way into Office 365 Migrations

We have had lots of questions regarding what PAW is when it comes to MRS Migrations, so let’s take a few minutes to explain PAW benefits to you. First off, what is this PAW we keep speaking of? PAW, or Protocol Agnostic Workflow, is new functionality within the Migration Service that really enhances the experience…


Understanding modern public folder quotas

As a part of our ‘demystifying modern public folders’ series we have so far discussed the modern public folder deployment best practices and available logging for monitoring public folder connections. In this blog post, we are going to discuss public folder quotas. Let’s get to it! Public folder mailboxes and quotas Mailbox quotas are not…


Why is my Address Rewriting not working as expected?

Address Rewriting is a feature of the Transport Agent that runs on the Edge Server role. It enables the modification of addresses for both senders and recipients on messages that enter and leave your Exchange organization. First introduced in Exchange 2007, customers are using Address rewriting to present a consistent appearance of E-mail Address for…