For a bit more context, most email infrastructures I’ve worked with are for transactional and marketing DTC and B2B companies. I would read my response in this context.

Re one-time setups and one-time changes: I think this will answer both questions and the implied PMF question as well. For internal FTE staff, this will be handle as a one off exception consistently (it’s really no one’s full-time job or responsibility). You may wish to speak with teams that offer professional services / SaaS including self-hosted where this infrastructure would be helpful. Their jobs are made easier with additional predicable / dependable infrastructure software (ie chat with (a) Twilio’s messaging team which remains the SendGrid acquisition, (b) related Red Hat / IBM) vs more work for an individual who is just doing this one-off. You may wish to consider a revenue share and/or white-labeling as they co-install the infrastructure for your business.

Thanks for that perspective. My goal right now is not money, I just want to build something super helpful. If I can make some cash later, in a way that helps everyone, like with white-label or pro-services, that is great. If not, I am cool with that too.

Building the community is the priority. If I do not solve a real problem for people, then the rest does not matter anyway.

Really appreciate you taking the time to share that 'pro-services' angle. It has given me a lot to think about.