A simple question to this community, what are you self-hosting? It's probably fun to hear from each-other what services we are running.
Please mention at least the service (e.g. e-mail) and the software (e.g. postfix). Extra bonus points for also mentioning the OS and/or hardware (e.g. Linux Distribution, raspberry pi, etc) you are running on.
Currently not, I'm using the SMTP+IMAP service from a hosting provider and my Spamassassin classifies all Mails in that inbox.
The anti spam solution they provided was not sufficient.