Create an Exchange Online report on SPAM, phishing, and malware using PowerShell

by A.K.common, Defender, M365, Microsoft Office 365Posted on No Comments

It’s often useful for businesses to gather statistics on their current email traffic. This can be done via the Defender Portal in Microsoft 365 or using PowerShell. Generally, the standard Exchange Online Protection already allows you to view and analyze a significant amount of data (this feature is included in most standard plans; see Business or Enterprise plans ). However, it’s …

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Managing email addresses in Exchange Online despite hybrid status

by A.K.common, hybrid environments office 365, Microsoft Office 365Posted on No Comments

On August 20th, the Exchange team published a post that should give many admins and consultants a sigh of relief. It’s now finally possible (for what feels like an eternity) to change Exchange attributes, such as user email addresses, in the cloud. These changes are then even written back to the local AD using Entra …

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With MTA-STS for More Security in Email Traffic

by A.K.common, Microsoft Office 365, securityPosted on No Comments

Several days ago, the BSI published a good article on the topic of email security and modern email infrastructures. https://www.allianz-fuer-cybersicherheit.de/SharedDocs/Downloads/Webs/ACS/DE/BSI-CS/BSI-CS_155.pdf This prompted me to write this article. Since the SMTP protocol was designed in the 1980s and security was not a major concern at that time, we need to continuously develop mechanisms to adapt this …

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FullAccess Permissions in Exchange Online with additional information

by A.K.common, Microsoft Exchange Server, Microsoft Office 365Posted on No Comments

In mid-March, I received an email from a reader (Sebastian) asking if it was possible to read out all full access permissions and then enrich this information with additional details. Specifically, it was about the department, meaning that the mailbox, authorized user, and the department of the authorized user should be output to a CSV …

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Mark E-Mails external with Exchange Online External Sender Identification

by A.K.commonPosted on No Comments

For some time now, Exchange Online has offered the option of making external emails visible directly in Outlook as well as OWA and Outlook Mobile. This function is called quite unspectacularly “ExternalInOutlook”. In action the function looks like this: I have already published an article on the topic of email banners with Exchange Transport Rules …

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