Powermta -

: Separate your transactional emails (like password resets) from marketing blasts using different VirtualMTAs to ensure critical mail isn't delayed by high-volume marketing queues.

It is important to note that PowerMTA is a tool, not a magic wand. Purchasing the software does not guarantee inbox placement. powermta

Major ISPs offer Feedback Loops, which notify senders when a user marks their email as spam. PowerMTA can natively process these FBL reports, automatically suppressing subscribers who complain. This is vital for protecting your IP reputation and ensuring future emails reach the inbox. : Separate your transactional emails (like password resets)