Sorry if I should be asking Amazon this, but I've been reading and not found the answer.
I have 4 client who I will be sending out newsletters through sendy. I have sendy running on my domain, I have successfully set up bounces and complaints with SNS for my domain. [as your notes]
Do I have to do this for each client, or do they use 'my' bounces and complaints 'Topics'?
TIA