Try our new Certificate Revocation List Check Tool
CRLcheck.exe is a tool developed to verify digital signatures of executable files. It collects files from known paths on your client, checks their signature, and checks Certificate Revocation Lists (CRL) and OCSP download. This helps avoid delays in launching files.

Category: M365 – Exchange Online

Exchange 2019 M365 - Exchange Online M365,AZURE,INTUNE

Exchange Tenant, EXO, EWS Security change (Fehlervermeidung Security), 02-2025

20.02.2025 admin

Exchange Tenant, EXO, EWS Security change (Fehlervermeidung Security) Microsoft verbessert die Sicherheit von EWS und löst das Problem bei der Kombination von “per Tenant” und “per User” Rechten. Dies erleichtert es insbesondere grossen Unternehmen, Compliance-Vorgaben konsequent durchzusetzen. Ein wesentlicher Grund für diese Änderung ist, dass viele Personen im M365-Portal oder über Graph API Änderungen vornehmen, […]

Exchange 2016 Exchange 2019 M365 - Exchange Online Outlook

Outlook.exe, delay in receive and sending E-Mail in cached mode how to solve with GPO

11.11.2024 admin

    In the OLD KB-Nummer: 982697 MS explains……. (Now MS Learn…) The default Behavior for downloading shared folders can be modified using Group Policy and registry settings. Some of these policies and registry values may have improved the performance of shared folders in earlier versions of Outlook or when the shared folders were located […]

Exchange 2016 Exchange 2019 M365 - Exchange Online Microsoft Exchange Microsoft Server OS Server 2019 Server 2022 [21H2/22H2/32H2] Server 2025 Tools we made Uncategorized

MS SRV Disable IPv6 the correct way CVE-2024-38063

16.08.2024 admin

Recommendation 16.08.2024 for CVE-2024-38063 and IPV6 There is a patch from 2008-2022+ Servers so use it See following LINK on how to import the older OS patches into WSUS CVE-2024-38063, CVSS 9.8, import free 2008/R2 + 2012R2 into WSUS – www.butsch.ch https://www.butsch.ch/post/cve-2024-38063-cvss-9-8-how-to-import-the-free-2008-2008r2-patch-into-wsus/ If you can’t patch then as least options CAREFULLY consider disabling IPV6 the […]

Exchange 2016 Exchange 2019 M365 - Exchange Online M365,AZURE,INTUNE Outlook

16.07.2024, Office 365 / M365 EX814289 shared calendar not working

10.07.2024 admin

Workaround ONLY works as long as you don’t close Outlook.exe (Don’t close Outlook after it works until MS solves problem) EX814289 Users may be unable to access shared calendars in the Outlook desktop app. Users who have access to Outlook on the web or Outlook for Windows (https://www.microsoft.com/store/productId/9NRX63209R7B?ocid=pdpshare) can use this connection method to access […]

Exchange 2013 Exchange 2016 Exchange 2019 M365 - Exchange Online Microsoft Exchange Server 2022 [21H2/22H2/32H2]

Microsoft Exchange Server SE (Subscription Edition) ab Herbst 2025

07.05.2024 admin

  Exchange SE (Subscription Edition), Exchange 2019 Nachfolger mit in-place Upgrade |   Microsoft hat gerade Release-Informationen und eine Zeitlinie für die Einführung der neuen Exchange SE (Subscription Edition) veröffentlicht. Kunden können weiterhin rein On-Premises oder im Hybridmodus arbeiten, wie es ihren Bedürfnissen entspricht. Neu wird die Exchange SE jedoch ausschliesslich im Abonnementmodell erhältlich sein. […]

CRUNCH ENS | Endpoint Security FW Fortigate FW Sophos GPO | Gruppenrichtlinien Intunes M365 - Exchange Online M365,AZURE,INTUNE Mcafee/Trellix Microsoft SCCM,MEM,MDT Microsoft Server OS Scripting Tools we made Uncategorized W10 WSUS

CRL check, Zertifikatsperrlisten Software, Certificate Revocation List Check Tool zum suchen aller geblockten CRL in Firmenumgebungen, crlcheck.exe

06.04.2024 admin

Mit diesem Tool findet man schnell und einfach alle verwendeten CRL eines clients und kann prüfen ob der client diese erreicht. In den vergangenen Jahren habe ich persönlich miterlebt, wie die Zertifikatssperrung auf Windows-Systemen oft unterschätzt wird, selbst in großen Unternehmen. Dieses Problem beeinträchtigt sowohl Client- als auch Server-Systeme erheblich, wenn es nicht korrekt verwaltet […]

Exchange 2013 Exchange 2016 Exchange 2019 M365 - Exchange Online M365,AZURE,INTUNE

Powershell to show and log SMTP Port 25, 465, 2525 after decomission old Exchange Server

03.04.2024 admin

Powershell to show and log SMTP Port 25, 465, 2525 after Decomission old Exchange Server   When decommissioning an Exchange Server, it’s common to install SMTP/IIS to capture and redirect the failing SMTP sender traffic, allowing us to monitor if there’s still traffic coming to the old Exchange. Below is a PowerShell script that you […]

CRUNCH Deployment DLP | Data Loss Prevention ENS | Endpoint Security Exchange 2010 Exchange 2013 Exchange 2016 Exchange 2019 FW Fortigate FW Sophos Intunes M365 - Exchange Online Mcafee/Trellix Microsoft Exchange Microsoft SCCM,MEM,MDT Microsoft Server OS MSME | Security for Exchange Scripting SECURITY Server 2016 Server 2022 [21H2/22H2/32H2] TIE/ATD/ATP | Sandbox - Advanced Threat Protection Tools we made VMWare W10

CRLcheck.exe Certificate Revocation List Check Tool to verify all CRL and OCSP on Windows client

23.03.2024 admin

CRLcheck.exe Certificate Revocation List Check Tool to automatic verify CRL and OCSP internet reachability of all your EXE files that your client runs. Download 11/2024 NEW Release 2.0.1.0 with OSCP check, Proxy Options, AIA Chain check etc. Version 2.0.1.0, https://www.butsch.ch/wp-content/uploads/tools/crlcheck/latest/crlcheck.7z       Over the past 20 years, I have personally witnessed how Certificate Revocation […]

Exchange 2016 Exchange 2019 M365 - Exchange Online

Enable Extended Protection for OS 2016 and Exchange 2016 (on-premises, no hybrid, no DAG) sample all steps explained

22.02.2024 admin

  Here you will find all steps to protect from CVE-2024-21410 Exchange Leak. This sample handels and standlaone Exchange 2016 running on Server 2016. The customer has no DAG (Cluster), He is NOT in Hybrid Mode Classic or Modern (He has no CLOUD connection), all latest 02/2024 Windows Updates are installed, the latest CU for […]

Exchange 2013 Exchange 2016 Exchange 2019 M365 - Exchange Online Microsoft Exchange Server 2022 [21H2/22H2/32H2]

Exchange CVE-2024-21410 2016 2019 Extended Protection Kemp-F5 and Modern Hybrid Mode problem

19.01.2024 admin

Exchange CVE-2024-21410 2013/2016/2019 Extended Protection Kemp-F5 and Modern Hybrid Mode problem Primary target which is part of the attack: Make sure you ROLLOUT the Outlook.exe 02/2024 Patch. That is the most important thing. Esp. On Home Office/Remote Office which may have SMB/445 to WAN open and for VPN users NO traffic to/via VPN-2-HQ policy (Which […]

Exchange 2007 Exchange 2010 Exchange 2013 Exchange 2016 Exchange 2019 M365 - Exchange Online Microsoft Exchange Outlook

Exchange-Powershell-list-all-user-who-have-a-Forward-or-Redirect-active

22.11.2023 admin

List or change Inboxrules employee have > Automatic E-Mail forwards to private or external E-Mail systems. Problem: In Exchange, users are able to forward E-Mail themself to an external private account. This is a problem because of compliance and if you don’t have a DLP (Data Lost Prevention). There are ways to prevent this (With […]

CRUNCH M365 - Exchange Online M365,AZURE,INTUNE

M365/Intunes | MDM and MAM enrollement, Primary user, User Scope Limitation what affect

08.07.2023 admin

M365/Intunes | MDM and MAM enrolled difference explained   First, let’s take a look at two different models: MDM and MAM. These models provide options for managing endpoints, including computers, clients, mobiles, and smartphones.     Mobile Device Management (MDM) Often device corporate owned and paid (Regular employee of SBS or Enterprise)     MDM […]

Azure M365 - Exchange Online M365,AZURE,INTUNE

M365/CLOUD, watch Microsoft status LIVE | See who has high volume traffic at homeoffice

27.06.2023 admin

https://twitter.com/MSFT365Status/status https://connectivity.office.com/status Microsoft M36X has been scaling up its information system to address downtime, which is unsurprising considering the recent outages experienced in the past months. Checking the Twitter Status M365 (https://twitter.com/MSFT365Status/status) in the morning is a good way to anticipate what to expect before opening your IT Support Ticket system. This allows you to […]

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