Thanks for the comment. I totally understand email is not something one should build themselves. But, the greater question is why do "selected" players get to define rules instead of keeping internet free?
Our emails go through all providers and land in inbox except when they are fronted by proofpoint.
Regulators need to do their job well instead of turning blind eye. Email is critical infra. for communication. These top players can't have monopolies on all communication.
Customer service do not entertain us because we are not Proofpoint active customer. Only way to get in touch with us is a dynamic URL generated by them for our IP address. We filled it out immediately about two month ago but they did not respond. It seems like a black hole.
We have certain plans that offer no-charge for customers for first 30 days with CC data on file maintained by Stripe. We send notice to them that their credit card about to be charged a monthly subscription fee. They have option to terminate the service if they wish.