Use this forum for all questions related to bounce management of OpenEMM
How does instant bounces work if you're using a Smart Relay Host. Since instant bounces go back to the sending server, won't bounces sent with a Smart Relay Host be returned to the Smart Relay Host? If not, how do instant bounces get back to the server that OpemEMM is installed on?
It depends on the smart relay. If it acts as a "write through" relay it can pass instant bounces directly back to the sending instance (which is the server running OpenEMM.) Otherwise all instant bounces are sent back to the sending instance via mail (and is handled by the delayed bounce management.)