Built-in SMTP-server in the IIS returns 5.7.1 Unable to relay - ted&gustaf
Automation Server > Automation Server configuration and administration guide > Initial project configuration > Best practices in the production environment > Configuring the SMTP service through IIS
Set Up IIS SMTP Relay for Office 365 Email Delivery
Bizagi Studio > Process wizard > Business Rules > Defining notifications > Email server configuration > Using an SMTP server > Using the IIS as an SMTP server > Using the IIS SMTP as a relay
SMTP Relay in Office 365 environment | Part 3#4 - o365info
Enable Opportunistic TLS in IIS SMTP Service - Tutorial
SMTP Relay in Office 365 environment | Part 3#4 - o365info
Configure SMTP E-Mail in IIS 7 and higher | Microsoft Learn
KB78618381: How to Configure IIS SMTP Server to forward emails using a Gmail account - KB78618381: How to Configure IIS SMTP Server to forward emails using a Gmail account - wiki.esko.com
SMTP Relay with Office 365
How to setup an IIS SMTP Relay server for Office 365 | 学习,收获,分享
How to configure IIS for relay with Office 365 - Guava Systems
Set Up IIS SMTP Relay for Office 365 Email Delivery
Stop IIS SMTP Server from sending "Delivery Status Notification (Failure)" - Server Fault
KB78618381: How to Configure IIS SMTP Server to forward emails using a Gmail account - KB78618381: How to Configure IIS SMTP Server to forward emails using a Gmail account - wiki.esko.com
Microsoft IIS 7.5 | Twilio
Microsoft IIS smtp smarthost relay service - turboSMTP