Great Microsoft engineers maintain the Exchange Server Health Checker PowerShell script. The script is excellent because they listen to feedback and are fast at pushing changes. A new update to the script will now show the correct vulnerability information if…
Security researchers from GTSC Network Security firm have found a new zero-day vulnerability in Microsoft Exchange Server 2013/2016/2019, which is exploited in the wild. According to the GTSC report, at the beginning of August 2022, they discovered a critical infrastructure…
You have an Exchange Hybrid configuration and want to migrate a mailbox from Exchange Online to Exchange on-premises. Only this time, you get the error Cannot find a recipient that has mailbox GUID. In this article, you will learn why…
Azure AD Connect is an excellent tool that syncs AD on-premises objects to Azure AD. What if the user object is created in the cloud directly and there is no AD on-premises object? Azure AD Connect will not create the…
There is an Event 1310, ASP.NET 4.0.30319.0 warning that keeps showing up in the Event Viewer. To be precise, it appears every 4 minutes. In this article, you will learn why this is happening and the solution for Event 1310,…
We recommend enabling TLS 1.2 on Exchange Server 2013/2016/2019 and disabling TLS 1.0, TLS 1.1, and TLS 1.3. Even though TLS 1.3 is newer, you should disable it. That's because TLS 1.3 is not supported for Exchange Server and causes…
You sometimes want to check which user accounts are disabled in Active Directory. Unfortunately, the Active Directory Users and Computers console is not that great when you want to export specific values. For example, you want to get all disabled…
How to export inactive AD users to CSV file? Sometimes you want to know which user account is inactive so you can block the account or see what's happening. You can use the Active Directory Users and Computers console to…
Security is essential for every organization. When an account password is breached, and access is made to the environment, a lot of confidential stuff will be gathered and leaked. This is a massive problem for every company. Let alone the…
Your Exchange Server 2016/2019 is up to date with the latest Exchange Cumulative Update and Security Update. But when you check the Exchange Server health, it shows a security vulnerability is detected: Download Domains are not configured. This article will…