We use MS Reporting Services to send out daily reports to some of our customers. Reporting services is configured with firstname.lastname@example.org. Before we switched to Office 365 from Gmail we were able to send some of our reports out through email@example.com. These would come across as "reporting services via Company 2 Support" with firstname.lastname@example.org showing as the from and reply-to address. I was not employed with this company at the time of setup and cannot figure out how this was done.
Basically, if reports are being sent to customers of company 1, show email@example.com.
If reports are being sent to customers of company 2, allow sending on behalf of firstname.lastname@example.org.
I know that reporting services will only allow one "from" email address. Is this possible to achieve through some other means? Through some sort of relay perhaps? Thanks in advance.