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Click To Run Click2Run Deployment Microsoft 365 Office Office 365 update

Centrally Managing Microsoft 365 Apps Updates

It used to be the domain of 3rd party enterprise apps or Microsoft’s Configuration Manager to control the updates (or servicing) of your Microsoft Office apps (now called Microsoft 365 Apps). With recent additions to the Office Configuration Portal at https://config.office.com you can have central admin of updates including groups to deploy and in which […]

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Endpoint Manager Intune MAM Microsoft 365 security

Intune MAM Exemptions – Discovering URL Protocols

In Microsoft Intune you can create a secure container where the data in your apps cannot leak outside of. That is, you can restrict copy/paste outside of the supported apps and restrict opening the data in a different app. But sometimes you need to open the data in a different app and with the Intune […]

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EOP error exchange exchange online Exchange Online Protection spam

550 5.1.8 Access denied, bad outbound sender AS(42003)

“Your message couldn’t be delivered because you weren’t recognized as a valid sender. The most common reason for this is that your email address is suspected of sending spam and it’s no longer allowed to send email. Contact your email admin for assistance.” This is an error you get when your anti-spam “outbound” policy restricts […]

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EOP exchange exchange online Exchange Online Protection Outlook owa security spam

[New] External Email Notification in Exchange Online

This is a new feature released in March 2021 that adds support in Outlook (Mac, OWA, Mobile) for the display of the external status of the sender – note at the time of writing it does not add this feature to Outlook for the PC. This should be used to replace the way this has […]

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Azure Active Directory Azure AD AzureAD consent exchange exchange online Exchange Server Zoom

Azure AD Consent For Zoom App Not Applying

This is a issue where you enabled Admin Approved Consent in Azure AD (as you should) and you require apps that have high data access rights to be approved. The Zoom add-in/desktop app falls into this category as it requires write access to your calendar and your contacts in Exchange Online. But if you set […]

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exchange exchange online iOS Outlook

iOS and Outlook Mobile and Duplicate Contacts

Of the back of a few conversations recently on having duplicate contacts in the iOS platform because of syncing via multiple different routes or devices I decided to try to reproduce the issues and see what I could work out. I looked on my test iPhone to see if I could see any duplicates and […]

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AIP Microsoft 365 Office 365 sensitivity labels

Removing a Default Sensitivity Label

In Microsoft 365 Sensitivity Labels you can have a label policy that requires that all content is labelled. If you enable this and then later decide this is not for you, you can republish your label policy and disable the default label and the require label policies. That is, your settings start like this: And […]

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2016 2019 antivirus Defender Exchange Server

Unable To Update Defender Preferences

I was trying to add Microsoft Defender exceptions via PowerShell to a clients server (Windows Server 2016 if that matters) the other day and it was always failing – the error was: This was returning “Failed to modify preferences” on the Add-MpPreference cmdlet and the error code 0x80070073 To fix I needed to uninstall Windows […]

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Azure Active Directory AzureAD exchange exchange online EXO Microsoft 365 Uncategorized

Why Do Comments In Microsoft 365 Planner Disappear?

So first you need an Exchange Online mailbox for comments to work. Comments to the tasks of Plans are stored in the Microsoft 365 Group mailbox, and you need an Exchange Online mailbox to access the M365 Group mailbox. Behind the scenes, or actually not that behind the scenes, the process for comments is as […]

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android Apple ATP Defender email EOP exchange exchange online Exchange Online Protection EXO iOS iPhone Office 365 Advanced Threat Protection phish phishing spam

Exchange Online Warning On Receipt Of New Email Sender

Released recently to no fanfare at all, Microsoft now has a SafetyTip that appears if you receive email from a first time recipient. Most often phish emails will come from an address you have never received email from before, and sometimes this email will try to impersonate people you communicate with or are internal to […]

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exchange exchange online Microsoft 365 Office Office 365 Raspberry Pi

Microsoft 365 From A Raspberry Pi 400 Personal Computer

So my new computer arrived today, its a keyboard and a few cables, and as my first computer was a ZX Spectrum when I was 14, this brings back a few memories. But, is it usable today with services such as Microsoft 365? Lets see… First, the actual computer is in the keyboard, but its […]

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DNS EOP exchange exchange online Exchange Online Protection Exchange Server smtp

Enabling Better Mail Flow Security for Exchange Online

At Microsoft Ignite 2020, Microsoft announced support for MTA-STS, or Mail Transfer Agent Strict Transport Security. This is covered in RFC 8461 and it includes making TLS for mail flow to your domains mandatory whereas it is currently down to the decision of the sender. You can publish your SMTP endpoint and offer the STARTTLS […]

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EOP exchange exchange online Exchange Online Protection Exchange Server

Reporting on MTA-STS Failures

This article is a follow up to the Enabling Better Mail Flow Security for Exchange Online which discusses setting up MTA-STS and in this article we cover the reporting for MTA-STS. To get daily reports from each sending infrastructure to receive reports on MTA-STS you just create a DNS record in the following format: It […]

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enhanced filtering EOP exchange exchange online Exchange Online Protection Exchange Server mimecast Office 365 spam

Enable EOP Enhanced Filtering for Mimecast Users

Blog post updated March 2020 to include more specific IP ranges for all Mimecast regions and to fix an issue where the email sender is also using the same Mimecast region as yourself and the risk of SPF failures. Enhanced Filtering is a feature of Exchange Online Protection (EOP) that allows EOP to skip back […]

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attribution domain enhanced filtering EOP exchange exchange online Exchange Online Protection Exchange Server mimecast Office 365 smtp transport

Mail Flow To The Correct Exchange Online Connector

In a multi-forest Exchange Server/Exchange Online (single tenant) configuration, you are likely to have multiple inbound connectors to receive email from the different on-premises environments. There are scenarios where it is important to ensure that the correct connector is used for the inbound message rather than any of your connectors. Here is one such example. […]

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android Apple AutoPilot Deployment Endpoint Manager Graph Intune iOS

What Is The Value of enrollmentProfileName

In Microsoft EndPoint Manager there are a few different device registration scenarios that make use of a property called device.enrollmentProfileName. To find and apply other settings (apps, config, etc) to these devices later on you need to have a Dynamic Device Group based on this property. The problem is the value of the property is […]