Protecting Administrator Mailboxes from Phishing and Other Threats
This article describes how to use Exchange transport rules to protect administrator mailboxes from malware and phishing attempts.
March 7, 2022
Latest Articles
Exchange Online Launches Support for MTA-STS
Exchange Online now supports SMTP Strict Transport Security (MTA-STS), a mechanism to help defend SMTP communications between mail servers.
February 4, 2022
How to Transition from Exchange Online Mailbox Retention Policies to Microsoft 365 Retention
Exchange Online has mailbox retention policies. Microsoft 365 has retention policies and retention labels. In this article, we explore how to move away from Exchange Online retention to use Microsoft 365 retention.
January 20, 2022
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. It's a phased deployment and won't complete until mid-May.
January 17, 2022
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.
January 13, 2022
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.
September 29, 2021
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.
September 20, 2021
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
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
Microsoft has announced their intention to enable plus addressing across Exchange Online in January 2022. This is a good capability, but it might cause some problems.
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
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
Ten Years On, Office 365 Backup is More Challenging Than Ever Before
Ten years after its launch, backing up Office 365 data is more difficult than ever before. Apps are more complex and interconnected and APIs aren't available. What should an Office 365 administrator do to protect tenant data. Here's some thoughts on the challenges and why Microsoft needs to do more to help in this space.
July 9, 2021
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