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Hrvoje Kusulja's avatar
Hrvoje Kusulja
MVP
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...
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Hrvoje Kusulja's avatar
Hrvoje Kusulja
MVP
Jan 12, 2017

Hi,

In Exchange Server (on-premise) Mail User feature is a free one and does not require additional license / CAL.

In Exchange Online I did not find any documentation / blog / explanation or limitation that Mail users needs to be licensed to be able do to some things.

The whole point of "Mail contact" which became "Mail user" is to be able send emails.

 

Also, when I assign a Exchange license to "Mail user" , then it does not get mailbox, but it is also removed from Contacts list forever and is not visible in Exchange cmdlets anymore.

 

Any offical reference for your answer?

 

Thank you,

Kind regards

Victor_Ungureanu's avatar
Victor_Ungureanu
Icon for Microsoft rankMicrosoft
Jan 12, 2017
It's not exactly clear to me what you want to achieve, but if you want to perform smtp client submission (I came to this conclusion because you mentioned smtp.office365.com), then you need to have a mailbox in Office 365.

Check this article, maybe you find an explanation there:
https://support.office.com/en-us/article/How-to-set-up-a-multifunction-device-or-application-to-send-email-using-Office-365-69f58e99-c550-4274-ad18-c805d654b4c4?ui=en-US&rs=en-US&ad=US&fromAR=1

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