In order to determine the user who sent a shared mailbox message, we suggest adding a property of sent messages indicating the user who sent it as a delegate; e.g., message.delegateSender or message....
Victor_Ivanidze
Jan 19, 2022Bronze Contributor
Could you please describe in details what exactly does the add-in you have mentioned and why do you BCCing a modified message - it might be I'll suggest something.