IIS SMTP virtual server

Tareq ALbhesy 1 Reputation point

can IIS smtp virtual server in windows server 2016 send Emails direct to internet without exchange server or smart host?

we have exchange 2016 on-prem already with SPF+DKIM+DMARC in place but once try send mail from iis smtp direct to internet it failed , once change the smtp setting in iis to exchange server is working fine , my goal is to know it's possible to use iis smtp without exchange server or SMTP server in general, the mail flow should go throw Exchange ??

Exchange Server Management
Exchange Server Management
Exchange Server: A family of Microsoft client/server messaging and collaboration software.Management: The act or process of organizing, handling, directing or controlling something.
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