Replace Exchange before the patches run out.
WHAT MIGRATION ACTUALLY INVOLVES
You are changing the server.
Your staff is not changing anything.
Replace Exchange
before the patches run out.
Ready to reduce your risk?
Choose the path that fits your timeline.
Support ended October 14, 2025. Since then the only route to a security patch has been a separate paid contract, bought through a Microsoft account team and requiring an Enterprise Agreement. That program ends October 31, 2026 with no extension. GFI KerioConnect® replaces Exchange on your own server. Your staff keeps Outlook.
Zero
Retraining. Staff keeps Outlook
BEFORE YOU DECIDE
Four questions IT admins ask first.
GFI KerioConnect® runs on your own server, keeps your staff in Outlook, and is live in under a day. A GFI engineer replies within 24 hours.
Will we lose any emails?
How long does it take, and what if something goes wrong?
Can we just buy ESU and decide later?
Only if you hold a Microsoft Enterprise Agreement. Microsoft sells Exchange ESU as a separate contract through your account team. It is not included in Volume Licensing or Software Assurance, and unlike Windows Server ESU there is no distributor or CSP route, so most small and mid-sized organizations cannot buy it at any price.
If you do hold an EA, Period 2 runs to October 31, 2026 and Microsoft has confirmed there is no third period. It covers only Critical and Important updates, Microsoft has not committed to releasing any during the period, eligibility is limited to Exchange 2016 CU23 and Exchange 2019 CU14 or CU15, and it does not let you open support cases. It buys eligibility and time, not a resolution.
Do we need specialist staff to run it?
How does the 30% migration discount work?
It applies to new subscribers migrating to GFI KerioConnect® from Exchange. Your order needs to be placed by September 30, 2026, and the date that counts is when you order, not when your migration finishes. It does not stack with other offers.
Already a GFI customer? A different offer applies to you, on its own page: GFI MailEssentials AI customers or GFI Exinda AI customers.
30% off
New subscribers migrating from Exchange
30% off Exchange migrations
Microsoft stopped patching Exchange 2016 and 2019. GFI KerioConnect® gets you off in under a day.
Support ended October 14, 2025. Since then the only route to a security patch has been a separate paid contract, bought through a Microsoft account team and requiring an Enterprise Agreement. That program ends October 31, 2026 with no extension. GFI KerioConnect® replaces Exchange on your own server. Your staff keeps Outlook.
Under a day
Server live and running in parallel
Zero
Retraining. Staff keeps Outlook
30% off
New subscribers migrating
from Exchange
Staff keep Outlook
Same inbox, calendar, folders, contacts. Phones stay in sync. Nobody relearns anything.
Mailbox data moves automatically
KEMT migrates email, folders, calendars, contacts and tasks. Rules, signatures, delegate permissions and distribution groups are recreated manually, scoped up front.
Rollback at every stage
Both servers run in parallel. Exchange keeps working until you say otherwise.
You manage less, not more
Web dashboard, and a GFI engineer with you throughout. If you manage Exchange today, you can manage this.
What you stop paying Microsoft for
- Server licenses
- Per-user CALs
- Software Assurance
One per-mailbox subscription instead. Ask for a like-for-like quote against your current CAL count and take the comparison to your finance team.
What happens after you submit
- Guide within 24 hours. Tailored to your environment by a GFI engineer.
- One assessment call. You agree the plan. Nothing starts until you are comfortable.
- Pilot, then cutover. A test group moves first. Mail routing switches in one to two hours.
Will we lose any emails?
How long does it take, and what if something goes wrong?
Can we just buy ESU and decide later?
Only if you hold a Microsoft Enterprise Agreement. Microsoft sells Exchange ESU as a separate contract through your account team. It is not included in Volume Licensing or Software Assurance, and unlike Windows Server ESU there is no distributor or CSP route, so most small and mid-sized organizations cannot buy it at any price.
If you do hold an EA, Period 2 runs to October 31, 2026 and Microsoft has confirmed there is no third period. It covers only Critical and Important updates, Microsoft has not committed to releasing any during the period, eligibility is limited to Exchange 2016 CU23 and Exchange 2019 CU14 or CU15, and it does not let you open support cases. It buys eligibility and time, not a resolution.
Do we need specialist staff to run it?
How does the 30% migration discount work?
It applies to new subscribers migrating to GFI KerioConnect® from Exchange. Your order needs to be placed by September 30, 2026, and the date that counts is when you order, not when your migration finishes. It does not stack with other offers.
Already a GFI customer? A different offer applies to you, on its own page: GFI MailEssentials AI customers or GFI Exinda AI customers.
After October 31, 2026, there is no patch at any price.
30% off for new subscribers migrating from Exchange. Order by September 30, 2026.
You are changing the server. Your staff is not changing anything.
EXCHANGE 2016 AND 2019
WHERE YOU ARE NOW
Everything ends in October.
Support ended October 14, 2025. Paid Extended Security Updates bought two more periods. The second is the last one Microsoft will sell.
-
October 14, 2025 Support ended
Security updates, fixes and technical support stopped.
-
Oct 2025 to Apr 2026 ESU Period 1
A paid contract became the only way to receive any patch.
-
May to Oct 2026 ESU Period 2
The final period. A separate purchase, even if you held Period 1.You are here
-
November 2026 onward No path
No patches at any price. Every new vulnerability is permanent.
You have until October 31, 2026.
ESU Period 2 is bought as a separate contract through your Microsoft account team, and it covers only Critical and Important updates. It does not entitle you to support cases, Microsoft has not committed to releasing any updates during the period, and eligibility is limited to Exchange 2016 CU23 and Exchange 2019 CU14 or CU15.
You have had no patch route since October 2025.
Microsoft sells Exchange ESU as a separate contract, purchased only through a Microsoft account team, and it requires an Enterprise Agreement. It is not included in Volume Licensing or Software Assurance, and there is no distributor or CSP route. If you do not hold an EA, every Exchange vulnerability disclosed since October 2025 is still open on your server today.
Show me the fastest way off ExchangeEvery Exchange 2016 and 2019 security update since October 2025 has been available only to ESU contract holders. After October 2026, no fix will be available to anyone at any price.
Under a day
Server live and running in parallel
Everything ends in October.
Support ended October 14, 2025. Paid Extended Security Updates brought two more periods. The second is the last one Microsoft will sell.
30% off for new subscribers migrating from Exchange. Order by September 30, 2026.
Order by September 30, 2026 to claim the 30% migration discount, based on order date rather than migration completion. 0 days left to claim the 30% migration discount. Order by September 30, 2026, based on order date rather than migration completion. The 30% migration discount closed on September 30, 2026. Talk to us about your options before Microsoft stops patching Exchange on October 31, 2026.