SPF, DKIM, DMARC and Exchange Online

We don’t like spam. And we need help fighting it, so this is what this post is about: Helping you help all of us that fight spam every day. Let’s start with the concepts. I promise it’ll be quick: SPF DKIM DMARC What does it stands for? Sender Policy Framework DomainKeys Identified Mail Domain-based Message…


Is ExpressRoute for Office 365 for me?

“Is ExpressRoute for me?” seems to be a recurrent question these days. And from Office 365 standpoint, the answer is probably not for the clear majority of customer asking that question. I will tell you why: Simply put, Office 365 is designed to work via the internet. Securely and reliably. Moreover, many of the services…


Editing distribution list membership after migrating to Exchange Online

So, your users manage distribution lists with Outlook. And then you decide to move to Exchange Online just to figure they will not be able to manage those DLs with Outlook anymore. Now what? You have options and one of them is discussed here: Allowing your users to edit the groups using only Windows. That’s…

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What the heck happened – My largest user group changed from Semi-Annual Channel to Monthly Channel?

Regarding Office 365 ProPlus updates, some IT admins want total control (which often turns out to be the illusion of control). Some follow the recommended practices, which is receiving updates via CDN (Content Delivery Network). Below is a scenario that can happen to YOU if you are managing Office 365 Pro Plus updates locally. Here’s…

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How many of my licenses are in use?

Yesterday a good friend of mine, who also happen to be one of my customers, asked an interesting question that no other customer asked me: “Is it possible for us to receive some kind of alert when I’m running out of licenses in Office 365?” That question got me thinking. And to be honest, I…


Adopt faster using Play Sessions

I have always struggled with learning new topics from online videos. Videos are definitively helpful, and I know a lot of people that learn how to cook, earn IT certifications, or even fix a car just by watching videos, but not me.  I prefer classroom training because I get to learn from someone in person…


Pre-flight and migration tool update

We received some feedbacks since the Pre-flight tool was published last year on GitHub: from bugs (yeah, those pesky things) to new features. Focusing on the features, it’s about time to make a review on them: Pre-flight This is what that motivated me to write the code: Giving customers a sample tool that helps checking…


Who is linked to whom in your spider web of mailbox permissions. Migration batch permissions analysis.

You’re going to migrate mailboxes from Exchange 2010, 2013 and/or 2016 to Office 365.  You know you have many mailbox permission threads between delegates, delegators, shared mailboxes and users.  How can you gather all those permission threads and determine who to migrate with whom to keep those permissions together?  What do you do when the…

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Completing individual move requests in a migration batch (changed behavior)

Recent changes in Exchange Online changed the way we finish individual migrations within migration batches. We used to run Set-MoveRequest -SuspendWhenReadyToComplete $false and Resume-MoveRequest, but that does not work anymore and the move requests get stuck in Synced state.   Imagine you have a migration batch set to start automatically and complete manually. Like the…


Have fun with your OOF

Believe it or not, people at Microsoft have fun. I do not mean we have fun with our jobs, which we do (my boss might be reading this… who knows?). We have fun with ourselves, the silly things we do every day, the dumb things as well… The other day I sent an e-mail to…


Exchange Online migration reporting

This article is a follow-up to the Mailbox migration – Do it yourself guide article. It is also a product of your direct feedback, so thank you!   Every migration batch you create is listed at the Exchange Online Admin Center (EAC, recipients, migration). You can open the migration batch details and scan for the…


Mailbox migration – Do it yourself guide

Let’s say you are running Exchange 2010+ on-premises but are not eligible for migrating with FastTrack Center. And you are looking for references to help you moving the mailboxes. Or even better, you are looking for a tool that helps you automate the migration process. You came to the right place: In the previous post…


Pre-flight – Checking objects before an Exchange hybrid migration

Customers working with FastTrack Center for mail migration can use a tool called Integrated Preflight. It checks for basic migration pre-requisites, such as: Does the target object exist in Office 365? Does it have the required e-mail addresses? Are all the e-mail addresses valid? Does the admin account have the required permissions?   The Preflight…


Do I still need an Exchange on-premises?

I have all my mailboxes online (and no public folders). Do I still need an on-premises Exchange Server? That’s a question the FastTrack Engineers are used to hear from customers. And it makes sense: There is no apparent reason to keep a mailbox server without a single mailbox. Except that there is an important reason…


Get your DNS right

Working with IT infrastructure in geographically dispersed companies can be challenging sometimes. Getting DNS right is often one of them, especially with most the Internet services trying to overcome network limitations such as latency with local endpoints for their services (hey, that’s us!). When you point all your users to the same external DNS, even…


Mail relay, gateways SMTP and Exchange Online

Almost every customer at FastTrack Center ask what to do with applications that send e-mail after moving to Exchange Online. Most of the apps use e-mail for internal and/or external notification mail. So… what to do with them?   My four rules for mail relay Please take into consideration I am not talking about massive…


Why we recommend not using proxy with Office 365

  We still have a lot of customers using web proxies for Internet access. Sometimes it is just a legacy, sometimes a way of controlling Internet access and other times, a network requirement (the network does not have a default gateway to the Internet). The idea of using proxies came from a time we had…


Skype Online cutover migration

Sometimes we are asked for a strategy to do a cutover Skype migration, meaning that all the users would be enabled in Skype Online a single pass. Leaving whatever they have in Lync/Skype on-premises behind. That is a great strategy for a lot of customers, but not all. If that is what you are planning…


Decommissioning Skype/Lync on-premises

This blog post is follow up on the Configuring Skype/Lync hybrid. It was also written by Daniel Seleri, a FastTrack Engineer based in Las Colinas, TX. After you transitioned all your users from Skype/Lync on-premises, you will probably want to decommission your local infrastructure. That’s what this post is about. Before you move forward Make…


Configuring Skype/Lync hybrid

Today’s blog post is based on one of the most requested step-by-step guides in FastTrack Center. It was written by Daniel Seleri, a FastTrack Engineer based in Las Colinas, TX. Enjoy it! Our objective today is to guide you through the steps of connecting your existing Skype for Business 2015, Lync 2013 or Lync 2010…


Restricting Search permissions in SCC Portal

This blog post was written by an Exchange PFE, friend of us in FTC. Tiago Souza is a Security & Compliance expert based in Brazil. Enjoy it! Most of you know that starting July 1st, 2017, you won’t be able to use the EAC to create searches in Exchange Online. Instead, you will use the…