Apr 01 2020
Dear MS Teams Developers,
please start using X-Auto-Response-Suppress: DR, NDR, RN, NRN, OOF, AutoReply
in your Teams notification emails.
Probably you are not going to react to them in any meaningful way ("I am OoOffice, in emergency please contact another team member.")
Thank you in advance.
Truly yours, a humble O365 tenant admin.
BTW: also please stop using "John Smith in Teams" type of sender name, it triggers a phishing reaction in O365 Exchange (screenshot attached: