What you need to know about Exchange 2013 and Office 365
Microsoft has announced that Exchange Server 2013 will reach the end of support on April 11, 2023. This means that after this date, Microsoft will no longer provide security updates, non-security hotfixes, or online technical content updates for Exchange Server 2013. It is important to note that the end of support for Exchange Server 2013 does not mean that the server will stop functioning. However, without security updates, the server may become more vulnerable to security threats and other issues. In addition to the Exchange server, you must also consider the SharePoint server 2013, Project, Lync server and Office 2013 client upgrade.