I’m sorry to great it’s been so frustrating for you. I know we all have our own tolerances for random junk and I’m glad you’re making the right decision for you at this time.
I’ve been running mailinabox for almost two years now and it has been very good for me. Especially once I send some email to my family members’ Gmail address and had them Mark it as “not spam” my deliverability has become very good.



I think thinking about offsite backup/object storage is very relevant to self hosting.
I’ve been on backblaze and using my bucket for video and it has been working well. I know it’s a pain but have you tried setting up a new bucket? Maybe you got a weird server in their data center …