{"id":9663,"date":"2025-08-28T15:43:12","date_gmt":"2025-08-28T13:43:12","guid":{"rendered":"https:\/\/prosteit.pl\/?p=9663"},"modified":"2025-08-29T09:22:06","modified_gmt":"2025-08-29T07:22:06","slug":"end-of-exchange-support-2016-2019","status":"publish","type":"post","link":"https:\/\/prosteit.pl\/en\/end-of-exchange-support-2016-2019\/","title":{"rendered":"Exchange 2016 and 2019 End of Support \u2013 What to Do Until October 14, 2025? Migration or Exchange SE"},"content":{"rendered":"
\n\t\t\t\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t

Imagine arriving at the office one Monday morning and your employees unable to log in to their email. Phones are silent, customer communication is at a standstill, and the sales department has no access to offers and contracts sent via email. This isn't a movie script\u2014it's a real threat to companies that still rely on email. Microsoft Exchange 2016<\/strong> or Exchange 2019<\/a><\/strong> and are approaching the end of support for these systems.<\/p>

October 14, 2025<\/strong> Microsoft will permanently end security and update support for Exchange 2016 and 2019. This means that if your company continues to rely on these servers for email, you will be left without a protective shield \u2013 without new patches, without technical support, and with an increasing vulnerability to cyberattacks.<\/p>

This is a warning sign for management boards and business owners. Corporate email is one of the most important tools for daily work \u2013 its downtime translates into financial losses, loss of customer trust, and communication chaos. The lack of support isn't immediately noticeable, but it acts like a ticking time bomb \u2013 the longer you wait, the greater the risk that the system will become insecure at the most inopportune moment.<\/p>

Fortunately, there are solutions. You can prepare for the upcoming changes by choosing migration to the Microsoft 365 cloud<\/strong>, update to the new version Exchange Server Subscription Edition (SE)<\/strong> or implementing a hybrid model. Each of these paths has its advantages and limitations, but one key point is crucial \u2013 don't wait until the last minute.<\/p>

In this article, we'll show you what the end of support for Exchange 2016 and 2019 means in practice, what risks it poses, and what options you have to ensure your company has security, business continuity, and modern communication tools.<\/p>

Comparison Table - Exchange Support Dates<\/span><\/h3>
Exchange version<\/th>Start date<\/th>End of Basic Support<\/th>End of extended support<\/th>Current status<\/th><\/tr><\/thead>
Exchange 2013<\/strong><\/td>January 9, 2013<\/td>April 10, 2018<\/td>April 11, 2023<\/td>No support (dangerous)<\/td><\/tr>
Exchange 2016<\/strong><\/td>October 1, 2015<\/td>October 13, 2020<\/td>October 14, 2025<\/strong><\/td>Still supported, home stretch<\/td><\/tr>
Exchange 2019<\/strong><\/td>October 22, 2018<\/td>January 9, 2024<\/td>October 14, 2025<\/strong><\/td>Only security patches until 10\/2025<\/td><\/tr>
Exchange SE (Subscription Edition)<\/strong><\/td>July 2025<\/td>no support end date<\/td>no support end date<\/td>Continuous support in the Modern Lifecycle model<\/td><\/tr><\/tbody><\/table><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t
\n\t\t\t\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t

End of support for Exchange 2016 and 2019 \u2013 what does this mean?<\/span><\/h2>

For many companies, the mailbox is the primary communication tool. It's where orders from customers, invoices from contractors, and information from employees arrive. It's no wonder so many organizations have used their own Microsoft Exchange mail servers for years. The problem is that every product has its own life cycle\u2014and in this case, Exchange Server 2016 and Exchange Server 2019<\/strong> this cycle inevitably comes to an end.<\/p>

Key date: October 14, 2025<\/span><\/h3>

Microsoft has officially announced that Support for Exchange 2016 and 2019 will end on October 14, 2025.<\/strong>This means that no more security patches or system updates will be released after this date. If your company stays on this version, your email server will continue to function\u2014but it will remain open to any new threats.<\/p>

What is the difference between basic and extended support?<\/span><\/h3>

Every Microsoft product goes through two phases:<\/p>