Hi. I would like to modify the postfix configuration so that I don't have to tweak it after every update. I saw that there is an option to add additional lines to dovecot: https://forum.howtoforge.com/threads/new-handling-for-custom-postfix-and-dovecot-config.86559/ however I would like to replace the contents of the lines in the main.cf postfix file. For example, I would like to remove postfix's RBL support completely directly - since rspamd does it, why duplicate it. I would also like to add my classes and the rules that use them. Do you know of any way to achieve this?