Message Encryption for the Office 365 Masses
Office 365 Message Encryption (OME) is the technology behind the ability of Exchange Online users to send encrypted messages sent to any recipient. Included in the Office 365 E3 and E5 plans (and equivalent education and government plans), OME is automatically enabled for tenants to allow people to use the Encrypt-Only feature supported by Outlook and OWA. Outlook mobile can read encrypted email inline but isn’t yet able to send encrypted messages. To support clients that don’t support encryption, OME also supports encryption through Exchange transport rules (aka mail flow rules). Continue reading
Microsoft’s announcement that the Exchange Hybrid Configuration Wizard (HCW) is now able to transfer some configuration settings from an Exchange on-premises organization to Exchange Online came as a disappointment. Not because of the functionality, which is welcome, but because it is limited and far too late. Continue reading
Given the complex nature of cloud computing, Microsoft is mindful that it’s not a case of if things will go wrong, but rather when. Microsoft designed their cloud services to maximize reliability and minimize the negative effects on customers when things do go wrong. We have moved beyond the traditional strategy of relying on complex physical infrastructure, and Microsoft have built redundancy directly into the cloud services. They use a combination of less complex physical infrastructure and more intelligent
software that builds data resiliency into our services and delivers high availability to the customers.
This post describes data resiliency in Microsoft Office 365 from two perspectives:
1. How Microsoft prevents customer data from becoming lost or corrupt in Exchange Online,
SharePoint Online, and Skype for Business; and
2. How Exchange Online, SharePoint Online, and Skype for Business protect customer data
against malware and ransomware. Continue reading
A hybrid deployment offers organizations the ability to extend the feature-rich experience and administrative control they have with their existing on-premises Microsoft Exchange organization to the cloud. A hybrid deployment provides the seamless look and feel of a single Exchange organization between an on-premises Exchange organization and Exchange Online in Microsoft Office 365. In addition, a hybrid deployment can serve as an intermediate step to moving completely to an Exchange Online organization.
But one of the challenges some customers are concerned about is that this type of deployment requires that some communication take place between Exchange Online and Exchange on-premises. This communication takes place over the Internet and so this traffic must pass through the on-premises company firewall to reach Exchange on-premises.
The aim of this post is to explain in more detail how this server to server communication works, and to help the reader understand what risks this poses, how these connections are secured and authenticated, and what network controls can be used to restrict or monitor this traffic. Continue reading
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 wanted to create the blog post series on the subject.
In this article, we will discuss how Free/Busy works in an Exchange Hybrid configuration. In next blog post, you will learn what are the most common problems along with how we go about diagnosing those (often) complex issues.
So, what is Free/Busy? Free/Busy is a feature that allows you to see when others are free (their calendar shows availability), busy (their calendar shows them as busy), or even Out of Office, or Something Else (tentative or working away) so that you can find an appropriate time for your meetings. Calling it all “Free/Busy/OOF/Something-Else” didn’t sound so cool to marketing hence “Free/Busy”. In a Hybrid deployment, we usually have some mailboxes in Exchange On-Premises and some mailboxes in Exchange Online (users are in different premises) and this has to work there too. Continue reading
An Easy Upgrade to iOS 11
The excitement barely stopped as I upgraded my iPhone 7s Plus to iOS 11 soon after Apple released the upgrade on September 19. The good news is that the upgrade was fast and seamless, which I expected because the phone is recent and I do not use any old 32-bit apps. All my apps worked after the upgrade, including those that I use with Office 365 such as Outlook for iOS (including support for multi-factor authentication), Outlook Groups, Yammer, Teams, Office 365 Admin (Figure 1), and so on. Continue reading
Your organization can migrate email to Office 365 from other systems. Your administrators can migrate mailboxes from an Exchange Server or migrate email from another email system. And your users can import their own email, contacts, and other mailbox information to an Office 365 mailbox created for them. Your organization also can work with a partner to migrate email.
Before you start an email migration, review limits and best practices for Exchange Online to make sure you get the performance and behavior you expect after migration.
Migrate mailboxes from Exchange Server
For migrations from an existing on-premises Exchange Server environment, an administrator can migrate all email, calendar, and contacts from user mailboxes to Office 365.
There are three types of email migrations that can be made from an Exchange Server: Continue reading