I do self host. You have to have all DNS markers set right and DKIM working right, but that isn't complicated really. The good reputation IP range is the bigge

I do self host. You have to have all DNS markers set right and DKIM working right, but that isn't complicated really. The good reputation IP range is the biggest problem. I have a more expensive ISP at home that takes its network seriously, so I look more like a commercial interest in that regard. There are decent services that will act as relay for you and probably cost less than such an ISP (or a similarly more expensive VPS provider that takes priority care of related things) if outgoing SMTP is your main reason for considering one.