[supriyo-biswas]

All I can say is IPs can and do get blocked by email receiving services, and especially Gmail and MS with their automated feedback loops, with all the implications of collateral damage that it entails. I remember helping provide data points in a similar conversation with another large customer (and a brand name that most would recognize here) who was concerned about increasing complaint rates.

The problem, if anything is that people kinda don’t know about what to do with these emails, and if more people marked these emails as spam, senders such as Nextdoor would sit up and take notice.