Exchange 2016 Archives - Page 2 of 4

Exchange 2010 Exchange 2013 Exchange 2016 Exchange 2019 Hotfixes, Updates M365,AZURE,INTUNE SECURITY SPAM Fortimail

CVE-2023-23397, Outlook.exe Exploit, PidLIDReminder custom Sound ab SMB für Termin Reminder

15.03.2023 admin

CVE-2023-23397 Was ausgenutz wird: Anstatt Standard Microsoft Outlook Sound kann man für ein meeting reminder einen Custom Sound angeben. Dieser kann auf einem Share liegen. Da liegt der Hund begraben. https://learn.microsoft.com/de-de/office/client-developer/outlook/mapi/pidlidreminderoverride-canonical-property https://www.forbes.com/sites/daveywinder/2023/03/15/microsoft-outlook-warning-critical-new-email-exploit-triggers-automatically-update-now/?sh=47f058ce6e5e CVE-2023-23397 ist ein Outlook-Bug. Wenn Sie eine eingehende E-Mail für einen Termin mit einer benutzerdefinierten Erinnerung (Ton, Attribut PidLIDReminder) senden, wird Outlook.exe (2012/2016) versuchen, […]

Azure CRUNCH Exchange 2013 Exchange 2016 Exchange 2019 M365 - Exchange Online M365,AZURE,INTUNE Microsoft Exchange

M365/Hybrid Exchange Setup: Steps to verify on-premise, Prepare for Directory Synchronization (IDFIX, UPN, Proxyaddress)

03.02.2023 admin

TIP: Cleanup everything LOCAL before you even think of moving anything to M365 or Azure or even starting the Connector PRO TIP: Full manual list of Objects/attribute to check on your local ADS in this blog. This blog entry is mainly about those two steps of the MS Technet: https://learn.microsoft.com/en-us/microsoft-365/enterprise/prepare-for-directory-synchronization?view=o365-worldwide Directory Clean-up Tasks Directory object […]

Exchange 2016 Microsoft Exchange Microsoft Server OS SECURITY

KEMP Load Balancer, Microsoft IIS, How to see Source IP address in Logfiles on Webserver

02.02.2023 admin

“We once had a case where we needed to install a URL-Rewrite Module in IIS CAS 2010 to submit more information to the Rapid7 Solution. (This was during a time before all the monthly leaks for 2013/2016/2019 came up, pushing all customers towards M365, and it was unclear what the module would do inside Exchange, […]

Exchange 2013 Exchange 2016 Exchange 2019 M365,AZURE,INTUNE Microsoft Exchange

Exchange: Error when you want to change a Receive Connector TLS with a Cert with no Common Name

01.02.2023 admin

On an Exchange 2016/2019/M365/Azure you want to change the TLS Certificate of your Receive Connector. Your SAN (Subject Alternate Name) or Wildcard Certificate has no Common Name [CN] (Empty). When you try to assign the cert the regular way you get an error. Nothing wrong with the Cert company just the other side (Requester/Converter) as […]

Exchange 2016 Exchange 2019 Microsoft Exchange

Exchange 2016 CU20 Schema Update setup.exe /preparead fail because of case sensitivity of OWA APP Policy

19.10.2022 admin

ISO/PATCH: ExchangeServer2016-x64-cu20 Cumulative Update 20 for Exchange Server 2016 (microsoft.com) Problem: Exchange 2016 CU20 Setup.exe /preparead (Version 15.1.2242.4 Fails) on Server 2016 (1607) Step Configuring Microsoft Exchange Server Organization Preparation results FAILED Exchange 2016 CU 20 need and fails to update Active Directory Schema to newer Version (setup.exe /prepareschema works setup.exe /Preparead fails) if you […]

Exchange 2010 Exchange 2013 Exchange 2016 Microsoft Exchange

Exchange 2013/2016 EAS Activeync (MDM, mobile) stops syncing. Event 2002, limit max, Targetbackend, will be rejected

31.08.2022 admin

Problem: Exchange 2013/2016 Activeync MDM Handy stops syncing, Event 2002, limit max, Targetbackend, will be rejected In generall this could be a EAS Activesync device running mad or a user using functions like Time to leave on iPhone (See link at end of document here) It’s rather important we find what causes the effect inseatd […]

Exchange 2010 Exchange 2013 Exchange 2016 Exchange 2019 M365 - Exchange Online M365,AZURE,INTUNE Microsoft Exchange

Exchange 2010 – 2016 Migration remove of old MDB fails (Mailboxexports)

28.07.2022 admin

Error: This mailbox database is associated with one or more active MailboxExport requests Source: This means you have current/Pending/stalled as sample PST Exports running (Maybe very old). Solution: You will have to remove those you are able to remove the emtpy old Exchange MDB. Get-MailboxExportRequest (ExchangePowerShell) | Microsoft Docs Microsoft Exchange Error […]

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

WINMAIL.DAT (Exchange 2007-2016-M365) Outlook – DEUTSCH

25.10.2021 admin

WINMAIL.DAT Transport Neutral Encapsulation Format oder TNEF ist ein proprietäres E-Mail-Anhangsformat, das von Microsoft Outlook und Microsoft Exchange Server verwendet wird. Eine Datei mit TNEF-Codierung wird in der Regel als winmail.dat oder win.dat bezeichnet und hat einen MIME-Typ von Application/MS-TNEF. Der offizielle (IANA) Medientyp ist jedoch application/vnd.ms-tnef. Wie oder wann passiert das? Wenn ein Absender […]

Exchange 2010 Exchange 2013 Exchange 2016 Exchange 2019 Microsoft Exchange

Exchange: Addresslist and Dynamic Distribution Groups in Shell

16.10.2021 admin

All you need are working samples not thousands lists and Technet Articles. So here we go with some Exchange Powershell we daily use. Maybe you want lists of all fields so you can choose one to use for the filter first. Get all user info from a certain OU Starting OU would be: OU=Active,OU=Users_W7,OU=BUTSCH,DC=butsch,DC=ch Get-ADUser […]

Exchange 2010 Exchange 2013 Exchange 2016 Exchange 2019

Exchange Meeting Resource Rooms, Booking, Delegate to Assistant

27.09.2021 admin

Exchange 2007/2010 Meeting Resource Rooms, Booking, Delegate to Assitant What we want: Because users can book meeting rooms and sometimes do that wrong IT or assistants want a solution so they can “Approve” each meeting before it gets finally booked. This is called Resource Delegates in Exchange World 😉 Microsoft has made a great effort to […]

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

Exchange 2013/2016 and 2010 Proxy back (400) Bad Request, ADS-user in too many ADS-groups member

23.06.2021 admin

Exchange 2010/2013/2016 Migration, problem after DNS-pointing to 2016 structure with some users Outlook.exe When you thought Kerberos Bloating is way back 2012 it returns. And after some research it is still all over the place. It does affect on premise Solutions as well as cloud solution like ADFS, AZURE etc. Error: This error (HTTP 400 […]

CRUNCH Exchange 2016 Hotfixes, Updates

Exchange 2016 CU20 Schema Update setup.exe /preparead fail because of case sensitivity of OWA APP Policy

19.04.2021 admin

Exchange 2010 Exchange 2013 Exchange 2016

03.03.2021 Exchange 2010, 2013, 2013, 2016, 2019 Patch KB5000871 how to Update correct with Links

03.03.2021 admin

HAFNIUM targeting Exchange Servers with 0-day exploits Important Exchange Update 03.03.2021 for all Microsoft Exchange Versions Affected Exchange Version: 2010, 2013, 2013, 2016, 2019 12.03.2021 We have seen so many installations fail on certain blogs and forums. Please make sure understand the update process of patching a special Server like Exchange or […]

Exchange 2013 Exchange 2016

Exchange 2016, Outlook 2016, Connection Status ERROR* Fehler*

08.02.2021 admin

Problem: Exchange 2016, Outlook 2016, Connection Status ERROR* Fehler* Solution: Install Outlook 2016 Patch KB3115101 Leider läuft man in die Falle immer wieder rein. Man sucht an allen Enden und Cipher oder Kerberos rum und am Schluss ist es ein simpler MS KB patch. Wohl im OnPremise WSUS integriert aber aus Zeitgründen auf […]

Exchange 2010 Exchange 2013 Exchange 2016

Error: “Exchange OWA HTTP500 Internal Server Error” after OWA Logon

04.02.2021 admin

Error: “Exchange OWA HTTP500 Internal Server Error” after OWA logon You see the Logon Screen from Exchange OWA. You Logon with valid Credentials. After Logon you receive a Website error: Solution/Reason/Source: Service “Microsoft Exchange Forms-Based-Authentication Service is not started or crashed. This was hard to find since behind a KEMP and during a […]


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Category: Exchange 2016