Author: Tony Redmond

Latest Articles

Many Successes and a Few Hiccups in the First Five Years of Microsoft Teams

In November 2016, Microsoft launched the preview version of a new application they called Teams. General availability duly came on March 14, 2017. Five years later, there's no denying the success of Teams and its influence across the Microsoft 365 ecosystem. Along with the success, Teams has had its glitches and failures, but the overall balance sheet is very positive.

March 14, 2022

Protecting Administrator Mailboxes from Phishing and Other Threats

One way to protect administrator mailboxes is not to use them. And if you want administrators to use separate mailboxes for their permissioned and non-permissioned activities, that's what you might do. However, we can be smarter and use transport rules to selectively block email sent to administrator mailboxes to dissuade internal people from sending email and blocking all but the most essential email coming in from external domains.

March 7, 2022

Diving into the Details of Microsoft Teams Shared Channels

A year after announcing Teams shared channels, Microsoft is preparing to release the code into public preview in March 2022. The new collaboration mechanism uses Azure AD B2B Direct Connect instead of guest accounts, meaning that external members of shared channels use credentials issued by their home tenant to gain access. You'll need to configure a cross-tenant access policy to allow shared channels to work externally. Once that's done, the collaboration floodgates open.

February 23, 2022

Threat Explorer and Investigations: Useful Microsoft Defender for Office 365 Features

Microsoft Defender for Office 365 (plan 2) contains the Threat Explorer feature. It's a useful way to investigate problematic messages which arrive in a tenant. The automated investigations feature can highlight messages containing malware by assembling evidence about warning signs in the message or its contents, and administrators can then action the recommendations up to and including the removal of messages already delivered to user mailboxes. Automating investigations is a good thing, if you afford Defender for Office 365 Plan 2.

February 21, 2022

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. Microsoft 365 tenants can decide if they want to enable MTA-STS for their domain by publishing a DNS record and an MTA-STS policy. You don't have to use MTA-STS, but it's a good idea to consider the option.

February 4, 2022

Bridging the Gap Between Microsoft Teams and Email

Teams is mostly an internal communications platform while email connects billions of people around the world. Inside Microsoft 365 tenants, you might need to connect Teams and email together. In this article, we discuss the out-of-the-box features available to link the two and describe some of the positive and negative points of each. You can certainly bridge the gap between Teams and email, but maybe Microsoft could grease the connection just a little more...

January 25, 2022