Sending notification mails should be possible via an alias.
In my case my client wants me to send automatic emails to partners when a corresponding item is added in a sharepoint list. I have nothing to do with these partners but they do get to see my personal email adress when I create a flow for automatic notifications.
This will only cause problems for me... the mails should be sent via "noreply" or something that indicates that it's coming from the flow.
The only solution that I see now, is to create an extra office 365 user... wich is a bit of overkill...
I'm copying up the very helpful response from @stormea :
This isn't necessary. Just use the Mail - Send an email notification action.
This connector works the same as the normal connectors, but instead of using a user account it acts as its own Flow based connector. Therefore when you send emails using it, the message will read as coming from firstname.lastname@example.org and display like the following:
I only use this as it makes sure to avoid sending the info for the Flow initiator.