@girish said in Spam filter doesn't always learn:
rspamd is better here but it does require more resources
rspamd require less training to work, and less complicated configuration setup.
but without clamav is pretty much equal to spamassasin with a little bit of training, and tweak.
AntiSpam in general are really havy to run, and complicated, if you take a plesk or cpanel antispam out of the box are similar to cloudron on.
The only solution is to implement a more complete stack in general, with blacklist, signature, DNSBL in a collaborative way, so that every cloudron can report spam and especially ham.
@imc67 if u want to manually improve you can add barracuda (b.barracudacentral.org) DNSBL to start. (this guide should work; backup your config file before edit it).
The issue of cloudron are mostly resources, because an efficient antispam will take to much ram, and cpu, so we need to find alternative solution, and my company is try to help cloudron to improve on this.