Create TLS and Non-TLS Office 365 SMTP Relays
Build and test TLS and non-TLS Office 365 SMTP relays using various techniques.
Send Email with Office 365 Direct Send and PowerShell
Send emails using Office 365 Direct Send and SMTP Authenticated Submission with PowerShell.
Set Up IIS SMTP Relay for Office 365 Email Delivery
Configure an IIS SMTP relay server for recipient email delivery from Office 365 using GUI and PowerShell.