I have configured Postfix to send mail from a dedicated server hosted let's on IP X.X.X.X and domain name example.com.
DKIM, SPF always pass when I send mail locally from that host but still ends up in Spam folder (Gmail, Hotmail).
I've also properly configured the Reverse DNS of said server.
I made sure the IP was not blacklisted anywhere using mxtoolbox.com
What else do I need to check ? Thanks in advance !