Hi All, I had configured own smtp server using iredmail. It is combination of nginx, mysql postfix, devocate and amavisd. - Point dns record to own server mx10 and mx20. - I set dkim, dmarc and svp. - I checked with mail tester and score full mark. - I sent email to port25 and everything is fine. Anyone know how to make gmail and yahoo whitelist my stmp server or my email will not filter as spam"?