Once you've downloaded the Microsoft Exchange Server 2016 ISO, follow this comprehensive installation process.
The Ultimate Guide to Microsoft Exchange Server 2016 ISO Download --- Microsoft Exchange Server 2016 Iso Download
Microsoft reduced architectural complexity by consolidating server architecture into just two roles: the Mailbox Role (which handles everything from client access protocols to back-end databases) and the Edge Transport Role (positioned in the DMZ for specialized anti-spam routing). Once you've downloaded the Microsoft Exchange Server 2016
Combined Client Access and Mailbox roles. --- Microsoft Exchange Server 2016 Iso Download
Always verify the SHA256 hash of your downloaded ISO file to ensure it hasn't been tampered with. Only use the official Microsoft download links provided above.