Fix Exchange Server errors, resolve event IDs, and master administration — step-by-step troubleshooting guides from certified Exchange professionals.
Our Exchange Server blog is the most comprehensive troubleshooting resource for Exchange administrators. Covering error codes, event IDs, and step-by-step fixes for Exchange Server 2013, 2016, 2019, and Exchange Online — every article is written by certified Exchange professionals who've managed enterprise mail systems with 100,000+ mailboxes.
Common topics include Exchange Server error codes and resolution guides, event ID troubleshooting (MSExchangeTransport, MSExchangeIS, etc.), Exchange hybrid deployment configuration, mail flow rules and transport pipeline, Exchange ActiveSync and OWA troubleshooting, database availability groups (DAG) management, and Exchange cumulative update deployment.
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Read Article →Last Updated: October 13, 2025 | Reading Time: 8 minutes | Action Required: Immediate ⚡ TL;DR – What You Need to Know in 30 Seconds Not sure if you’re affected? Take our 60-second risk assessment → ???? Are You Running a Ticking Time Bomb? Imagine this scenario: It’s Monday morning. Your IT team discovers that […]
Read Article →Exchange Server Subscription Edition (SE) complete guide. New licensing, features, CU schedule, upgrade paths from 2019. Future-proof your email.
Read Article →Exchange Server 2016 and 2019 reached end of support in October 2025. This complete migration guide covers hybrid, cutover, and staged migration paths to Exchange Online with step-by-step instructions, tool comparisons, and timeline estimates.
Read Article →Complete Exchange Server 2013 CU & SU guide. All Cumulative Updates, Security Updates, compatibility matrix. Keep your server patched and secure.
Read Article →Complete Exchange Server 2016 CU & SU guide. Latest Cumulative Updates, Security Updates, installation steps. Keep your mail server secure.
Read Article →Complete Exchange Server 2019 CU & SU guide. Latest Cumulative Updates, Security Updates, .NET requirements. Essential patching reference.
Read Article →Exchange Server 2019 Build Numbers Microsoft Exchange Server 2019 Build Numbers and Release Dates Product Name Release Date Build Number (Short Format) Build Number (Long Format) Link Exchange Server 2019 RTM 10/22/2018 15.02.0221.018 15.02.0221.018 Download Exchange Server 2019 CU1 01/08/2019 15.02.0330.005 15.02.0330.005 KB4471389 Exchange Server 2019 CU2 06/18/2019 15.02.0397.003 15.02.0397.003 KB4503027 Exchange Server 2019 CU3 […]
Read Article →Managing Microsoft Exchange Server environments can be complex — especially when trying to stay compliant with supported versions, OS builds, Active Directory, and client compatibility. That’s why this Exchange Server Supportability Matrix is your go-to guide. Whether you’re upgrading to Exchange Server 2019 CU15, planning a migration to Exchange Server SE, or ensuring browser and […]
Read Article →Microsoft has officially announced the end of support for Exchange Server 2016 and 2019, and with the release of Exchange Server Subscription Edition (SE) just around the corner, now is the time for organizations to take action. Whether you’re still on Exchange 2016, planning your move to 2019 CU15, or waiting for Exchange SE—don’t wait […]
Read Article →In this article Find the Exchange Online limits for various service areas, including address book limits, mailbox storage limits, and reporting and message trace limits, to name just a few. Exchange Online limits fit into one of the following categories: Address book limits Address list limit: The maximum number of address lists that can be […]
Read Article →Power Pages Anonymous Users allows organizations to create and manage web pages that are accessible to the general public without requiring user authentication. This feature is ideal for businesses that want to share information or services with a wide audience while still ensuring their content is secure and manageable. Key Features Benefits Note: Power Pages […]
Read Article →Mailbox folder permissions are critical for collaboration in Microsoft Exchange Online and Exchange on-premises. However, administrators often encounter errors while managing permissions using PowerShell. One such error is: Set-MailboxFolderPermission – There is no existing permission entry found for user This article explains the root cause of this error, its implications, and provides step-by-step instructions to […]
Read Article →Managing oversized mailboxes is a common challenge for businesses using Exchange Online. One of the trickiest scenarios is dealing with calendar invites and responses in the Sent Items folder, which can accumulate to massive sizes over time. If these items aren’t archived properly, they may bloat user mailboxes, causing storage and performance issues. At Medha […]
Read Article →Outlook Anywhere enables organizations that have either Exchange Server 2010 SP2 or SP3 to provide users with secure connections to their Exchange mailboxes from anywhere without using a VPN. It securely enables RPC over HTTP for remote access to Exchange, which is so important with the mobile and dispersed workforce of today. This tutorial is […]
Read Article →Microsoft Exchange Online is a secure cloud-based solution for organizational email and calendaring; it’s part of Microsoft 365. To keep using the service securely, effectively, and to avoid service disruptions, there are limits to storage, messaging, recipient handling, and other settings. This article will be your tour guide through the main constraints in Exchange Online, […]
Read Article →Client overview A mid-sized manufacturing company based in Michigan, with over 300 employees and multiple locations, was relying on Microsoft Exchange 2013 for their email and communication needs. However, the end of support for Exchange 2013 and growing concerns over security, scalability, and IT management led the company to consider migrating to Microsoft 365. The challenge […]
Read Article →This article provides a comprehensive guide to the build numbers and release dates of Microsoft Exchange Server. It covers various versions, from Exchange Server 2000 to 2019, and explains how to find the build number of your Exchange server. Whether you are a beginner or have some experience, this information will help you understand your […]
Read Article →Migrating to Microsoft 365 (formerly Office 365) can be a complex process, especially when handling various data types like emails, contacts, and calendars. Choosing the right migration tool is crucial to ensure a seamless transition without disrupting your business operations. In this post, we’ll discuss the top 10 Exchange to Microsoft 365 migration tools, highlighting […]
Read Article →As businesses continue to embrace cloud technologies, migrating from on-premises Exchange servers to Office 365 has become an increasingly popular choice. This transition offers numerous benefits that can enhance productivity, security, and cost-efficiency. Here are five compelling reasons why your organization should consider migrating your Exchange mailbox to Office 365. Enhanced collaboration and productivity Office […]
Read Article → You can route outgoing email through Google with SMTP relay service. Even if your company uses non-Gmail services, SMTP relay service enables you to filter messages for spam and viruses. In this blog, you can learn how to configure G Suite mail flow using SMTP relay. Required tools: G suite admin access Things needed? […]
Read Article →As time passed by and as hundreds of clients checking in and out year by year, we understand that our efforts are started giving out measurable results.Learn more about our IT services
Read Article →<p>Welcome to this exclusive edition of Medha Hosting Exchange Server 2016 step by step guide.You will be learning how to install and setup your exchange server 2016. This Exchange Server 2016 Step by step guide is 4 parts installation steps. This guide is exclusively written keeping in mind for new Exchange server 2016 Administrators who […]</p>
Read Article →<p>Certificate Warnings Outlook After Installing Exchange Server 2016 certificate warnings outlook !!! After installing Exchange Server 2016 into your organization you may receive reports from your end users of a security alert containing certificate warning outlook messages appearing in Outlook. Example of an Outlook certificate warning The two most common problems reported by the Outlook […]</p>
Read Article →<p>Exchange Server 2007 !! After many years of success, Exchange Server 2007 is reaching end of support on April 11, 2017, per Microsoft Lifecycle Policy. As a reminder, after this date, there will be no new security updates, non-security updates, free or paid assisted support options or online technical content updates. In addition to Exchange […]</p>
Read Article →<p>Introduction- How to secure Microsoft Exchange server in Post-TMG world For many organizations, Microsoft’s Threat Management Gateway was a critical reverse-proxy security solution for Microsoft Exchange and SharePoint publishing. TMG provided a number of security benefits for Microsoft applications including: The Microsoft announcement of TMG’s end-of-sale in 2012 and the end-of-support in 2015 left organizations […]</p>
Read Article →Exchange Server Subscription Edition (SE) complete guide. New licensing, features, CU schedule, upgrade paths from 2019. Future-proof your email.
Read Article →Complete Exchange Server 2019 CU & SU guide. Latest Cumulative Updates, Security Updates, .NET requirements. Essential patching reference.
Read Article →Complete Exchange Server 2016 CU & SU guide. Latest Cumulative Updates, Security Updates, installation steps. Keep your mail server secure.
Read Article →Complete Exchange Server 2013 CU & SU guide. All Cumulative Updates, Security Updates, compatibility matrix. Keep your server patched and secure.
Read Article →Master Microsoft 365 — from licensing and plan selection to Exchange Online administration and Teams deployment. Guides from certified Microsoft professionals.
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