•9 min read•Sreenivasa
What Is Microsoft Exchange Server? Editions & Versions
What Microsoft Exchange Server is, how it works, on-premises vs Exchange Online, current versions, and licensing basics.
Read Article →Exchange Server Blog: Administration, Errors & Troubleshooting
Fix Exchange Server errors, resolve event IDs, and master administration — step-by-step troubleshooting guides from certified Exchange professionals.
44 Articles•5 Expert Authors•Updated Weekly
Related Service:Exchange Server Support →
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.
Our Exchange Server Support team provides 24/7 emergency support with 15-minute response SLAs. Whether you're dealing with a database failover, mail flow disruption, or hybrid configuration issue, our engineers resolve it fast.
Planning to move off on-premises Exchange? Our Exchange to Microsoft 365 migration service handles cutover, staged, and hybrid migrations with zero downtime and full coexistence support during transition.
•9 min read•Sreenivasa
Exchange Server Management Tools: EMS, EAC & Options
Exchange management tools compared: Exchange Management Shell, admin center, management-tools-only install, and monitoring options.
Read Article →•10 min read•Sreenivasa
Exchange Hybrid: How It Works, Setup & Requirements
Exchange hybrid deployment: what it connects, Hybrid Configuration Wizard, full vs minimal hybrid, requirements, and common issues.
Read Article →•10 min read•Sreenivasa
Exchange Database Recovery: ESEutil & Dirty Shutdown
How to recover a dismounted Exchange database: check state with ESEutil /mh, soft recovery /r, hard repair /p limits, and RDB restore.
Read Article →•9 min read•Sreenivasa
Exchange DAG: Setup, Failover & Troubleshooting
Exchange Database Availability Groups: how DAGs work, setup requirements, failover behavior, and troubleshooting failed copies.
Read Article →•9 min read•Sreenivasa
Exchange Admin Center: How to Access & Use the EAC
Exchange admin center access URLs, what each section does, common admin tasks, and EAC vs PowerShell.
Read Article →•9 min read•Sreenivasa
Exchange Cumulative Update: Current CUs & Install Order
Current Exchange CUs by version, CU vs SU difference, install order, prerequisites, and rollback limits.
Read Article →•9 min read•Sreenivasa
Exchange Server Versions: Build Numbers & Support Dates
Every Exchange Server version with release dates, latest build numbers, and end-of-support status. 2013, 2016, 2019, and SE.
Read Article →•9 min read•Sreenivasa
Exchange 2019 End of Life: Support Ended, Your Options
Exchange 2016 and 2019 support ended October 14, 2025. What no support means, the risks, and the paths: Exchange SE or Exchange Online.
Read Article →•9 min read•Sreenivasa
Exchange Server Subscription Edition (SE): Licensing & Upgrade
Exchange Server SE: what changed from 2019, subscription licensing requirements, upgrade paths, and CU servicing model.
Read Article →•13 min read•Sreenivasa
Exchange to Office 365 Migration Step by Step — 2003 to 2019, Cutover, Staged & Hybrid (2026)
The complete step-by-step path from every Exchange version to Office 365: cutover, staged, hybrid — exact sequences, public folders, and decommission.
Read Article →•9 min read•Sreenivasa
Decommission Exchange After Office 365 Migration — The Right Order (2016/2019/SE)
How to safely decommission Exchange 2010, 2013, 2016 or 2019 after migrating to Office 365 — why you usually should NOT uninstall the last server if you sync from AD, and the exact shutdown order.
Read Article →•15 min read•Sreenivasa Reddy G
Exchange Online vs On-Premises: The Ultimate 2025 Comparison
After migrating 1,200+ businesses, here's the brutal truth: Cloud saves 60% over 5 years for 95% of companies. But 5% should stay on-premises. Here's the complete TCO breakdown, decision framework, and why most IT teams are protecting jobs—not budgets.
Read Article →•24 min read•Sreenivasa Reddy G
???? URGENT: CISA Emergency Directive 25-02 – Your Exchange Server Is at Risk Right Now
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 →•22 min read•Medha Cloud
Exchange Server to Microsoft 365 Migration 2026: Complete Guide for Exchange 2013, 2016, and 2019
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 →•12 min read•Sreenivasa Reddy G
Navigating Exchange Server 2013 Cumulative Updates (CUs) & Security Updates (SUs): A Comprehensive Guide
Complete Exchange Server 2013 CU & SU guide. All Cumulative Updates, Security Updates, compatibility matrix. Keep your server patched and secure.
Read Article →•18 min read•Sreenivasa Reddy G
Your Ultimate Guide to Exchange Server 2016 Cumulative Updates (CUs) & Security Updates (SUs): Downloads & Key Information
Complete Exchange Server 2016 CU & SU guide. Latest Cumulative Updates, Security Updates, installation steps. Keep your mail server secure.
Read Article →•3 min read•Sreenivasa Reddy G
Exchange Server Supportability Matrix
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 →•3 min read•Sreenivasa Reddy G
Exchange Server Support Ending: Here’s What You Need to Do (Before It’s Too Late)
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 →•23 min read•Sreenivasa Reddy G
Exchange Online limits
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 →•2 min read•Bhargav T
Power Pages Anonymous Users Plan
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 →•4 min read•Sreenivasa Reddy G
Fixing ‘No Existing Permission Entry Found for User’ Error in Set-MailboxFolderPermission
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 →•4 min read•Sreenivasa Reddy G
How to Archive Exchange Online Calendar Items in Sent Items: A Comprehensive Guide by Medha Cloud
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 →•4 min read•Sreenivasa Reddy G
How to Enable Outlook Anywhere on Exchange Server 2010: A Step-by-Step Guide
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 →•5 min read•Bharath
Complete Guide to Microsoft Exchange Online Limits: Storage, Messaging, and Policy Constraints for Optimal Use
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 →•7 min read•Bharath
Top most Exchange to Microsoft 365 Migration tools for seamless business transitions: Expert insights and recommendations
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 →•2 min read•Sreenivasa Reddy G
How to configure G Suite Mail Flow using SMTP Relay?
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 →•5 min read•Sreenivasa Reddy G
Efforts measurable by result: Medha Hosting’s approach toward work
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 →•10 min read•Bharath
How to install Exchange Server 2016 step by step
<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 →•4 min read•Bharath
Microsoft Exchange Server 2007 end of support
<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>
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