I am looking to warm up a new domain for a client, we currently use a shared proprietary domain with good results but looking to test their own domain for optimization. I was given a recommendation by my ESP provider and we also did research to see best practices but are still unsure which is best. We would like your help in figuring out the pros and cons. Attached are two warm up plans. Client is a non profit with opted in list of 250k. Regular end of month fundraising blasts along with 1 email per week with other subject matter. We would be happy to pay a fee for the recommendation and any insight you have.