As an Exchange Admin, you have come across many scenarios when your Exchange 2016 server stops sending email. This can be due to low disk space, back pressure, anti-spam agents, etc. but how do you resolve an issue when none of the above apply. Recently a customer reported that a server just stopped working. After spending some time looking through all the log files, this was the error that keep repeating: 451 4.7.0 temporary server error. please try again later. prx4 The log files for “SMTPReceive” were large because of all the errors above for every email that could not be processed. If th ..read more

Windows Server 2022 Core provides a minimalistic and lightweight installation option for running various server applications, including Exchange Server 2019. To manage and configure the server, Microsoft provides a command-line tool called Sconfig. In this guide, we will walk you through the steps to use Sconfig on Windows Server 2022 Core that runs Exchange Server 2019. Step 1: Accessing the Command Prompt First, you need to access the command prompt on your Windows Server 2022 Core, this normally comes up when you access the server and login or are already logged in. Here is a screenshot of ..read more

In Exchange 2019, there is an important feature called the 30-day retention period on disabled mailboxes. This feature ensures that even when a mailbox is disabled or deleted, the data associated with it is retained for a specific period of time. When a mailbox is disabled or deleted in Exchange 2019, it is not immediately removed from the system. Instead, it goes into a soft-deleted state where it can be recovered within the retention period. This retention period is set to 30 days by default, but it can be customized based on the organization’s needs. During the 30-day retention period, the ..read more

We know that applying the latest Exchange 2016 or Exchange 2019 Security updates are important to close vulnerabilities identified however, what happens when these updates auto install and then fail with a standard error message saying the update failed to install and the system was not modified. You need to look deeper and in the setup logs to find the actual cause of the update failing. If you navigate to C:\ExchangeSetupLogs, you should have a “ServiceControl” log file file. Open this log file and scroll to the bottom, you should see something similar to the below error: Exchange 2016 March ..read more

Are you planning to migrate your mailboxes from Exchange 2016 to Exchange Online? Look no further than MigrationWiz, a powerful and efficient solution that simplifies the migration process. In this blog post, we will guide you through the steps to migrate your mailboxes seamlessly using MigrationWiz. Why Choose MigrationWiz? MigrationWiz is a trusted and widely-used migration tool that offers a range of benefits for organizations looking to migrate their mailboxes to Exchange Online. Here are some reasons why you should consider using MigrationWiz: Easy to Use: MigrationWiz provides a user-fr ..read more

When it comes to choosing the right operating system for your Exchange Server 2019 deployment, you have two options: Windows Server 2022 Core and Windows Server 2022 GUI. Both versions have their own advantages and considerations, so it’s important to understand the differences before making a decision. Windows Server 2022 Core Windows Server 2022 Core is a minimal installation option that provides only the essential components needed to run the operating system. It does not include a graphical user interface (GUI) and is managed entirely through the command line. This lightweight approach off ..read more

NMAP and NMAP scripting Engine Introduction Nmap, short for Network Mapper, is a powerful and versatile open-source network scanning tool used for security auditing and network exploration. It allows users to discover hosts, services, and vulnerabilities on a network, making it an essential tool for network administrators, security professionals, and ethical hackers. Using Nmap Nmap is a command-line tool, available for various operating systems, including Windows, Linux, and macOS. Here are the basic steps to use Nmap: Step 1: Install Nmap First, you need to install Nmap on your system. If yo ..read more

Outlook for Mac 365 is a popular email client that offers a range of features and add-ins to enhance productivity. However, some users may encounter an issue where the “Add-ins” option is disabled in their Outlook for Mac 365. If you are facing this problem, don’t worry, as there is a simple fix to enable the add-ins option. To enable the add-ins option in Outlook for Mac 365, follow these steps: Step 1: Open Settings in Outlook for Mac Launch Outlook for Mac 365 on your computer. Click on the “Outlook” tab in the menu bar at the top of the screen, and then select “Preferences” or “settings” f ..read more

Microsoft Outlook for Mac 365 is a powerful email and productivity tool that allows users to manage their emails, calendars, and contacts efficiently. One of the great features of Outlook is the ability to enhance its functionality by adding add-ins. Add-ins are small apps that integrate with Outlook and provide additional features and capabilities. If you are using Outlook for Mac 365 and want to enhance your email experience, here’s a step-by-step guide on how to add add-ins to your Outlook. Step 1: Open Outlook Launch Outlook on your Mac by clicking on the Outlook icon in the Dock or by sea ..read more

Outlook is a popular email client that offers various features and settings to enhance productivity and efficiency. One of these settings is Cached Mode, which allows users to access their mailbox data offline. In this article, we will guide you through the process of enabling Cached Mode in Outlook and discuss the pros and cons of running Cached Mode. Enabling Cached Mode in Outlook To enable Cached Mode in Outlook, follow these steps: Open Outlook and click on the “File” tab at the top-left corner of the window. Select “Account Settings” and then choose “Account Settings” again from the dro ..read more