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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
0

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
0

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
0

Remediate SWEET32 — Disable TLS_RSA_WITH_3DES_EDE_CBC_SHA For Windows Server 2012 R2

Posted on 12th June 2022 by Rhoderick Milne [MSFT]
Remediate Sweet32

Admins have become very aware of the need to adjust the Schannel protocol settings for TLS to enable TLS 1.2 and to disable older versions.  However, … Read the rest “Remediate SWEET32 — Disable TLS_RSA_WITH_3DES_EDE_CBC_SHA For Windows Server 2012 R2”

Security Security, Tips N Tricks
0

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
0

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
2

Out of Band Critical Exchange Security Updates–March 2021

Posted on 2nd March 2021 by Rhoderick Milne [MSFT]

Security updates were released today for Exchange 2010, 2013, 2016 and 2019.  Attacks were detected which leveraged these vulnerabilities, so an out o… Read the rest “Out of Band Critical Exchange Security Updates–March 2021”

Messaging, Security Exchange, Exchange 2010, Exchange 2010 SP3, Exchange 2013, Exchange 2013 SP1, Exchange 2016, Exchange 2019, Security
0

Exchange Managed Availability Broken With TLS 1.2 Changes

Posted on 3rd December 2020 by Rhoderick Milne [MSFT]

In most enterprise customers there is a segregation of duties between multiple teams.  This could be networking and desktop.  Or Windows Server platfo… Read the rest “Exchange Managed Availability Broken With TLS 1.2 Changes”

Messaging, Security Exchange, Exchange 2013 SP1, Exchange 2016, Managed Availability, Security
0

Critical Schannel Vulnerability – MS14-066

Posted on 13th November 2014 by Rhoderick Milne [MSFT]

Not So Happy Security WidgetIn the November 2014 security bulletin there were 14 updates released.  The updates resolved security issues in IE, OLE and Schannel.  It is the latte… Read the rest “Critical Schannel Vulnerability – MS14-066”

Messaging Exchange, Exchange 2007, Exchange 2010, Exchange 2013, Security
0

Important Upcoming Certificate Changes

Posted on 3rd September 2012 by Rhoderick Milne [MSFT]

Please be aware that there is a pending change for the minimum key length for certificates with RSA keys.  The private keys used in these certificat… Read the rest “Important Upcoming Certificate Changes”

Messaging Certificates, Exchange, Security

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