PowerMTA configuration override for virtual MTA return path

Question

Our installation uses OEM Pro to remove emails to the PowerMTA directory. OEM Pro only allows you to specify one global domain for all domains. This global catch of the entire domain is used as the return path, and the return path is what should be verified by looking for SPF records. Thus, this is not an ideal situation, since we want each client to have their own SPF records and have their own domain in the return trip.

We conclude that our best approach is to configure PowerMTA to redefine the return address, can this PMTA configuration be configured for a virtual MTA?

Answer 1

I received the following response from PowerMTA support on a similar issue:

PowerMTA content not defined. We cannot set headers. This is done by the feeding application. Other MTA servers may offer this functionality, but PowerMTA does not.

So, I changed my application to use their .Net API, and there you can install MAIL FROM.