Tag: Exchange Online

Latest Articles

Exchange Online Introduces DANE and DNSSEC for Outbound Email 10 Comments

Exchange Online Introduces DANE and DNSSEC for Outbound Email

In a December 24 announcement, Microsoft says that the roll-out of DNSSEC and DANE support in Exchange Online will start in mid-January 2022. Because this is a big change for the Exchange Online infrastructure, Microsoft is using a phased deployment which won't complete until mid-May. Support for DNSSEC and DANE has been coming for a long time, but it's good that the extra security which these standards bring will be available to Exchange Online tenants.

January 17, 2022
How to Use Office 365 Audit Data with Microsoft Sentinel 11 Comments

How to Use Office 365 Audit Data with Microsoft Sentinel

Microsoft Sentinel is Microsoft's log aggregator. Along with other data, Sentinel can ingest events from the Office 365 audit log. Once ingested, we can visualize the data through workbooks. If you have an Azure subscription, it's surprisingly easy to take advantage of the 31-day trial to see if Sentinel can do a job for your organization. Follow our steps and you'll be visualizing quickly.

January 13, 2022
Microsoft Caps Exchange Online’s “Unlimited Archive” at 1.5 TB 19 Comments

Microsoft Caps Exchange Online’s “Unlimited Archive” at 1.5 TB

On November 1, Microsoft will limit auto-expanding archives to 1.5 TB and bring the era of "bottomless archiving" to an end. The new limit might not affect many Exchange Online tenants, but it's a wake-up call for administrators to check how archiving is used in their tenants. To help the process, we've written a PowerShell script to report the current set of user and shared mailboxes with archives.

September 29, 2021
Old Versions of Outlook for Windows Stop Connecting to Exchange Online November 1

Old Versions of Outlook for Windows Stop Connecting to Exchange Online November 1

From November 1, 2021, Microsoft requires Outlook 2013 Service Pack 1 (with fixes) as the minimum client version to connect to Exchange Online. Given all the publicity about attacks against the on-premises version of Exchange earlier this year, it's a wonder why organizations continue to allow people to use outdated client software to connect to Exchange Online. In any case, the drop-dead date is November 1. If you have any old Outlook 2007, Outlook 2010, or Outlook 2013 (before SP1) clients, it's time to start upgrading.

September 20, 2021
How to Convert Azure B2B Guest Users to Members While Maintaining User Collaboration 19 Comments

How to Convert Azure B2B Guest Users to Members While Maintaining User Collaboration

Azure B2B guest accounts are often created during a Merger & Acquisition, so teams from both organizations can easily collaborate during the business and technology integration. However, these external users with B2B Guest accounts in their directory will eventually need to be migrated, which is problematic since B2B Guest accounts aren’t recognized as being licensed. The guest account can be removed and a new one created, but previous permissions would be lost. So how do we preserve permissions, keep collaborating without managing two sets of credentials while preparing the user account for data migrations? This article walks you through a solution that can be used in certain situations to help you easily manage the account to meet your needs.

September 8, 2021
Manage Exchange Online at Scale

Manage Exchange Online at Scale

Microsoft Certified Master (MCM) and Microsoft Certified Solutions Master (MCSM) Ingo Gegenwarth provides a glimpse into his speaking session at TEC and how to manage ExO at scale with PowerShell.

August 23, 2021
Exchange Online to Enable Plus Addressing Everywhere in January 2022 14 Comments

Exchange Online to Enable Plus Addressing Everywhere in January 2022

Microsoft has announced their intention to enable plus addressing across Exchange Online in January 2022. Plus addressing is a good capability, but it might cause some problems for tenants with mail-enabled recipients that have plus addresses in their set of proxy email addresses. Fortunately, we've written some PowerShell code to report those pesky addresses and to remove them if you want to do a big clean up before Microsoft makes the big switch in five months' time.

August 16, 2021
The Practical 365 Update: S2, Ep 24 – Skype Retires (or does it?), Windows 365 pricing & Teams 2.0 surprises us – plus MVP Ingo Gegenwarth talks managing Exchange Online at scale

The Practical 365 Update: S2, Ep 24 – Skype Retires (or does it?), Windows 365 pricing & Teams 2.0 surprises us – plus MVP Ingo Gegenwarth talks managing Exchange Online at scale

In the show this week, Ingo Gegenwarth joins Steve and Paul to talk about how to manage Exchange Online at scale in advance of his TEC talk; and we look at the pricing for Windows 365, test drive Teams 2.0 and check in on Skype in retirement - has it really retired?

August 6, 2021
Office 365 Ten Years On

Office 365 Ten Years On

Launched on June 28, 2011, Office 365 is ten years old. The effect of Microsoft's cloud office system has been profound on corporate IT. In this article, we reflect on some of the major developments relating to Office 365 since 2011.

June 28, 2021
Managing Office 365 Quarantine Confusion 22 Comments

Managing Office 365 Quarantine Confusion

The email quarantine process is as old as email itself, and still an essential part of any email service. As far as Office 365 is concerned, Exchange Online is a world-class product and the quarantine mechanism works well, however, the current iteration of the Quarantine portal falls short in user experience and performance.

June 10, 2021
Moving on from Send-MailMessage: Sending Email from PowerShell using the Graph API 36 Comments
PowerShell Microsoft Graph

Moving on from Send-MailMessage: Sending Email from PowerShell using the Graph API

Many PowerShell scripts use the Send-MailMessage cmdlet to send mail. That's fine, but if you want to remove basic authentication to improve tenant security, you need to stop using Send-MailMessage. One solution is to move to use the Graph API SendMail call. This works fine, but it creates some new security issues that need to be thought through. In this article, we explain how to use the Graph to send email and some of those security considerations to ponder.

June 8, 2021