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CRL Check – Certificate Revocation List Validation Freeware Tool

15.12.2025 admin

CRL Check for Windows Environments CRL check is a tool designed to collect executables from most used paths on your client. It checks whether they are digitally signed with a code certificate and then retrieves the Certificate Revocation Lists (CRL) and OCSP for each signed file it finds. It then automatic verifies if the client […]

Exchange 2019 M365 - Exchange Online M365,AZURE,INTUNE Microsoft SCCM,MEM,MDT Outlook

Verify if you are affected from MS EX1181125, new M365 group member added wrongly had OWNER permission 03.10-31.10.2025

05.11.2025 admin

Error: Some users added as members to a Microsoft 365 group in Outlook on the web may be given “Owner” permissions by default Important Security Notice for M365 Groups Between October 3 and October 31, 2025, Microsoft Exchange Online experienced an issue that affected Microsoft 365 (M365) Groups. During this period, when a new […]

M365 - Exchange Online M365,AZURE,INTUNE

Exchange Online SMTP Volumen Limiten für ausgehende E-Mail ab März 2025 – TERRL

25.02.2025 admin

Microsoft führt Limit für ausgehenden SMTP-E-Mail-Flow von Tenants ein Honest Pre-Lude: This decision has been revoked like other by MS since customers where not happy. There is #1 single reason IT departments were forced to migrate their on-premise to M365 and EXO. Because there where NO Limit on size, volume, there was NO mandatory 2-form […]

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-Number: 982697 MS explains….. The default Behaviour 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 in Exchange Server on-premises mailboxes. […]

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 […]

M365 - Exchange Online M365,AZURE,INTUNE Outlook

16.07.2024, Problem Office 365 und shared Kalender MS EX814289

12.07.2024 admin

Problem beim Öffnen eines freigegebenen Kalenders in Outlook Desktop Outlook für Microsoft 365 Workaround ONLY works as long as you don’t close Outlook.exe (Don’t close Outlook after it works until MS solves problem) Der Workaround ist NUR aktiv solange Outlook.exe offen ist (Nicht zumachen bis MS das problem fixt) MS EX814289 Betrifft nur die Office […]

Exchange 2019 M365 - Exchange Online Outlook

16.07.2024, Office 365 / M365 EX814289 shared calendar not working

12.07.2024 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. Problem opening a shared calendar in Outlook Desktop, Outlook for Microsoft 365 Users who have access to Outlook via Office […]

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

crl check | crlcheck tool Eine Certificate Revocation List (CRL) ist eine von einer Certification Authority (CA) geführte Liste, die digitale Zertifikate auflistet, die revoziert wurden und nicht mehr gültig sind. Sie stellt sicher, dass Benutzer die Gültigkeit eines Zertifikats überprüfen können, was die Sicherheit innerhalb einer Public Key Infrastructure (PKI) erhöht. Mit diesem Tool […]

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 01.01.2026, NEW Release 2.2.0.0 rebuilt for server and small display resolutions like VM’s Version 2.2.0.0 Download from our Server or different software portals: https://www.butsch.ch/wp-content/uploads/tools/crlcheck/latest/crlcheck.7z https://www.softpedia.com/get/Security/Security-Related/Certificate-Revocation-List-Check-Tool.shtml https://www.majorgeeks.com/files/details/certificate_revocation_list_check_tool.html Over the past […]

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 […]

Certificate Revocation List Check Tool is designed to enhance security by performing several key functions related to executable files (EXE). It can scan your client for EXE files and examine their code-signing certificates. The tool also searches for the relevant CRL to determine whether it can be downloaded. It validates the integrity of the certificate chain, checks both the certificate and CRL for expiration dates, and can export a comprehensive list of all gathered information as a file. Additionally, it cross-references to ensure you are not using any revoked certificates, helping maintain a secure environment.

Category: M365 – Exchange Online