Forum Discussion
Jan 12, 2017
Exchange Online - Mail User - without license and how to send email / SMTP access
Hi, tenant has E3 subscription and uses Exchange Online. We want to create external "mail contact" who can send emails through SMTP. So we created Exchange Online > Mail user. User can normally lo...
Guido Leenders
Feb 11, 2018Copper Contributor
Yes, you are right again, cname has indeed drawback that the certificate does not match the name. I've chosen nonetheless for cname to make it easier to switch. TLS is not so strict currently in our nodes. But it is indeed not the right approach for optimal security.
hkusulja
May 24, 2019MVP
It is possible to send for free, through Azure AD App and using Microsoft Graph API ...