SMTP Relay Server -- 2

I am looking for networks instructor to help me understand this use case related SMTP relay Server

Use case:

Printer has functionality scan to mail; the user can scan directly document on the printer and send scanned document to his email. the Printer send the document to SMTP relay server and the SMTP relay server forward it to mail server which it forward it to user .

Role Smtp-Relay server is on windows server 2019 installed and using IIS management console configured, this server configured to receive emails from specific IP and this configuration using smart host established.

thank you

SMTP Administrim rrjeti Server Windows System Administration

ID Projekti: #33803619

Rreth projektit