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Items related to Office 365

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Configure On-Premises Exchange For EOP Spam Thresholds

Posted on 23rd January 2023 by Rhoderick Milne [MSFT]
Exchange Online Anti Spam Threshold

A common issue when deploying Exchange Online Protection (EOP) and Microsoft Defender for Office 365 (MDO) with on-premises Exchange is making Exchang… Read the rest “Configure On-Premises Exchange For EOP Spam Thresholds”

Messaging Defender for Office 365, Exchange, Exchange Online, Office 365, Security
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Check If AD FS WSTrust Endpoint Enabled

Posted on 14th November 2022 by Rhoderick Milne [MSFT]
Check WSTrust Endpoint Configuration

Active Directory Federation Services (AD FS) uses endpoints to provide access to features.  There are a series of different endpoints which each serve… Read the rest “Check If AD FS WSTrust Endpoint Enabled”

ProTips, Security AD FS, Office 365, Security
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How to Use NsLookup To Check DKIM Record

Posted on 3rd October 2022 by Rhoderick Milne [MSFT]
Check DMARC DNS Record Using NSLookUP

There are a multitude of online tools that help diagnose issues with various mail services, but understanding what these tools actually check is valua… Read the rest “How to Use NsLookup To Check DKIM Record”

Messaging, ProTips, Security DKIM, Exchange Online, Office 365, Sender Authentication
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Migrate Safe Links Block Settings to TABL

Posted on 20th July 2022 by Rhoderick Milne [MSFT]
Migration of MDO Global Block List to TABL

Note that there have been changes to Safe Links policy for Microsoft Defender for Office 365 (MDO).

Previously you could add URLs to the Safe Links pol… Read the rest “Migrate Safe Links Block Settings to TABL”

Messaging, Security Defender for Office 365, Exchange Online, Office 365, Security
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Upgrade to Azure AD Connect 2.0

Posted on 3rd July 2022 by Rhoderick Milne [MSFT]
Azure AD Connect Upgrade to 2.X

When delivering Office 365 Security Optimisation Assessments (SOA) to customers, one of the control items is the version of Azure AD Connect deployed a… Read the rest “Upgrade to Azure AD Connect 2.0”

Messaging, Security Azure, Dirsync, Office 365
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SSL Labs Scan Outlook.Office365.com–June 2022

Posted on 12th June 2022 by Rhoderick Milne [MSFT]
SSLLabs Scan Outlook.Office365.com June 2022

This post is a scan of Outlook.office365.com taken with the SSLLabs.com scan tool which analyses the TLS configuration of the server.

 

 

Depre

… Read the rest “SSL Labs Scan Outlook.Office365.com–June 2022”
Security Office 365, TLS
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Defender Portal Enable Audit – Is That The Unified Audit Log?

Posted on 27th May 2022 by Rhoderick Milne [MSFT]
Defender Portal Enable Audit - Unified Audit Log

This was a question from a recent customer engagement:  Why is the Microsoft Defender portal asking me to turn on the Unified Audit Log when I already… Read the rest “Defender Portal Enable Audit – Is That The Unified Audit Log?”

Security Office 365, Security
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How To Use Nslookup To Check DMARC Record

Posted on 16th May 2022 by Rhoderick Milne [MSFT]
Check DMARC Using NSLookup

One of my customers wanted to verify their Domain Based Message Reporting Conformance (DMARC) record, and followed the post How To Use Nslookup To Che… Read the rest “How To Use Nslookup To Check DMARC Record”

Messaging, Security DNS, Office 365, Sender Authentication, Windows
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Microsoft Defender for Office 365 Blog Compiled links

Posted on 18th February 2022 by Rhoderick Milne [MSFT]
Microsoft Defender for Office 365 Blog Compiled links

Below are a series of links to the main Microsoft Defender for Office 365 blog.  Shortcuts added here as this is one of my shared bookmarks.

Note that … Read the rest “Microsoft Defender for Office 365 Blog Compiled links”

Messaging, Security Defender for Office 365, Office 365, Security
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Microsoft Teams Source IP Address Used Connecting to On-Premises Exchange

Posted on 14th February 2022 by Rhoderick Milne [MSFT]
Teams IP Addresses Connecting to Exchange On-Premises

Planning to deploy Office 365 and integrate with your on-premises Exchange infrastructure?  Great!  While running the Exchange Hybrid Configuration Wi… Read the rest “Microsoft Teams Source IP Address Used Connecting to On-Premises Exchange”

Messaging Exchange 2016, Exchange 2019, Exchange Online, Office 365, Teams

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