I have been testing dedicated SPAM server and having 2 different servers add the word SPAM in the topic is kind of annoying. Where is that word added and how can I disable it in ISPconfig?
Spam filtering software adds the * SPAM * to subject. Recent ISPConfig systems use RSpamd, I think you could tweak settings there so it does not modify header. I'm not sure if this change can be made from ISPConfig panel.
Thx Till. Found it under: Email Spamfilter Policy All these years and somehow I never looked there before.