You Could Lose 100% of your Emails, Migrate from Exchange Server Before October 2025
If your business is still using Microsoft Exchange Server 2016 or 2019, you could be in serious trouble. Starting October 14, 2025, Microsoft will officially end support for both versions and that means your email system can be completely doomed
- No more updates.
- No more patches.
- No more protection.
We know what you’re thinking, but trust us, we’re not being dramatic, continuing to run your business email on outdated apps could lead to data breaches, structural problems and compliance not met. And with regulations like HIPAA, GDPR, and FTC Safeguards being stricter every year, the consequences could go far beyond technological failure.
We’ll show you what’s happening, why it matters to your organization and what your business can do to stay updated and productive.
Why Is Exchange Server Being Retired?
Like any other app and tool in the market, it has a well-known product lifecycle, software is programmed to be supported for a set number of years, and then it’s replaced for better, safer, and more efficient version.
That time has come for Exchange Server 2016 and 2019.
After October 14, 2025, these versions will:
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Stop receiving security updates and hotfixes.
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No longer be supported for technical issues.
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Become vulnerable to modern threats and data loss.
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Fall out of compliance with major industry standards.
Especially if you’re running an on-premises (physical) Exchange server, you’ll be left managing outdated technology with growing costs and risks.
So, What are These Risks you Could Face?
Think of it like this: would you hide your cash under the mattress if its transparent? Or drive your family in a car without working brakes?
That’s essentially what you’re facing by staying on Exchange Server after support ends. You could lose:
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Access to partial or complete emails if systems crash.
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Client trust due to data breaches or ransomware attacks.
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Compliance fulfilling, leading to potential fines.
And to maintain Exchange on-prem? It wouldn’t get any cheaper. Matter of fact, you’re paying for:
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Hardware replacement
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Backup infrastructure
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IT engineers for potential structural failure
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Constant patching and monitoring
When all of that can now be handled more securely and affordably in the cloud… why keep the burden?
Take the Smarter Path: Microsoft 365 Business Premium + Exchange Online
CSE’s recommended solution is Microsoft 365 Business Premium, which includes Exchange Online, a secure, cloud email platform that offers everything Exchange Server does and more.
Here’s what you get when you make the transition:
99.9% Uptime Guarantee – Your email is always on, even if your office isn’t.
50GB+ Mailboxes – Plenty of space, so you never run out of communication.
Built-in Anti-Spam and Anti-Malware – Microsoft’s filters help keep you safe without third-party apps.
Outlook + Teams Integration – Bring email, chat, calendar, and meetings together in one complete experience.
Data Loss Prevention (DLP) – Protect sensitive content like financials or health records.
eDiscovery & Retention Policies – For legal holds, audits, and compliance needs.
Scalability – Whether your organization has 10 users or 500, you can scale with ease, no servers required.
And because it’s all in the cloud, your team can work secure from anywhere, anytime.
Wait… Isn’t Migrating Email Going to Take Time?
It surely will take some time, but you won’t notice it.
In Computer Solutions East we make things easy for you. We’ve helped small to mid-sized businesses migrate from Exchange Server to Exchange Online without data loss, downtime, or user confusion.
Here’s how we help:
Step 1: Discovery & Planning
We review your current Exchange server: whether is on-premises or not, number of mailboxes, mailbox size, permissions, third-party integrations, and compliance rules. Then, we develop a migration plan designed for your business.
Step 2: Execution
We move your mailboxes, configure DNS, set up user access, and ensure everything works, from Outlook to mobile devices, all of this while keeping your email working at all times.
Step 3: Security & Compliance Setup
We re visit your Exchange Online policies to align with your industry requirements, from MFA to encryption to archiving.
Step 4: User Support & Training
We onboard your team, answer their questions, and make sure they’re comfortable using their new tools.
Our goal is no downtime, no confusion, and no stress. Just a better way to work. Now is the time to take control and plan a smart, stress-free transition.
Start Your Transition Now, Before It’s Too Late
Your email system is critical. It empowers sales, customer service, operations, and communications. Don’t wait until it becomes a liability.
CSE is here to help you migrate from Exchange Server to Microsoft 365 Business Premium with zero setbacks.
Let’s Get Started -> Get Your Microsoft 365 Business Premium License
About Computer Solutions East
We’re a Microsoft Solutions Partner with 15+ years of experience helping small to mid-sized businesses modernize their technology infrastructure. From cloud migrations to cybersecurity and managed services, we make IT simpler and smarter for you.
Let’s secure your email and empower your team, together.
