Helo, I've a postfix server wich uses SASL + Mysql for authentication, my own domains are mostly listed in a mysql table on that database. Its working fine enough, but I want to made it a bit more restrictrive. At current time its behaviour about sending mail is as folows:
FROM external domains TO my own domains -> accept FROM my own domains TO my own domains -> accept FROM my own domains TO external domains -> requires authentication FROM external domains TO external domains -> reject What I want to do is that it also requires authentication when sending from my own domains TO my own domains. What is the best way to do that? Thanks a lot in advance,
