Office 365 Smtp Authentication. How to Enable SMTP Authentication in Office 365 Use this method to enable SMTP authentication on individual Office 365 mailboxes The starting point to find that solution was Microsoft 365 Admin Center > Settings > Org settings > Services > Modern authentication
Sending an email using Office 365 SMTP and OAuth2 authentication from limagito.com
The link to the above mentioned documentation is provided in description of Modern authentication SMTP AUTH supports modern authentication (Modern Auth)
Sending an email using Office 365 SMTP and OAuth2 authentication
Now I'm able to send emails by SMTP protocol with using an app password from MFA enabled account. The SMTP AUTH protocol is used for SMTP client email submissions, typically on TCP port 587 SMTP AUTH supports modern authentication (Modern Auth) through OAuth in addition to basic authentication.
Sending an email using Office 365 SMTP and OAuth2 authentication. The following methods are available to send email from these devices or applications using Microsoft 365 or Office 365: Client SMTP submission (also known as authenticated SMTP submission or SMTP AUTH): Send authenticated email using the credentials of a cloud mailbox The starting point to find that solution was Microsoft 365 Admin Center > Settings > Org settings > Services > Modern authentication
How to Check SMTP AUTH is Enabled or Disabled in Microsoft 365. The SMTP AUTH protocol is used for SMTP client email submissions, typically on TCP port 587 Now I'm able to send emails by SMTP protocol with using an app password from MFA enabled account.