I've been self hosting email for 10 years now, don't have an issue with spam/blacklisting, I would say claims of self hosting emails death have been greatly exaggerated.
The main thing is to have a regular TLD, not something like .biz or .xyz etc, use DKIM/SPF, >> ensure your PTR record is setup << (critical) to match the domain name you're hosting your mail server on and you should be good to go.
The main thing is to have a regular TLD, not something like .biz or .xyz etc, use DKIM/SPF, >> ensure your PTR record is setup << (critical) to match the domain name you're hosting your mail server on and you should be good to go.