Forum Discussion
send on behalf, not using primarysmtpaddress in FROM
You cannot send outgoing messages from Teams, so I'm assuming you are talking about some system-generated ones? In that case, best open a support case, as it's probably something Microsoft needs to address on the backend/in code.
When you create a meeting in Teams, via the Teams calendar and then add a channel, the meeting request is sent on behalf of the user from the o365 group.
The o365 group SMTP address is used in the FROM: field, however the primary SMTP address of the group is not used, in fact the SMTP address which is used does not exist.
so for example : a meeting created in the XYZ team, where the o365 group primary SMTP address=xzy@group.domain.com,
the invite comes from mailto:xyz@domain.com this SMTP address does not exist and this is not correct, it should be xyz@group.domain.com
Agreed, this is not the expected behavior, Teams should use the corresponding group address. Open a support case and report this, and I'll try pinging few folks.
I have came across this issue. This setting is in Teams and the email address used by sender is the MS Team unique id.
This could not be changed.
