hello,
I will check the postfix issue and would resolve it ,as per your requirements , i can start immediately
i will also install ssl to make it secure
I am server admin having 7 years of expertise in server set up,bulk mailing, email marketing , with various mailing software applications like mailwizz,interspire,acelle,mumara,sengrid,sendiblue,sendy,mailgun,mandrill,powermta,postfix etc and will pass all the authentications like spf,dkim,dmarc ,dns etc and will also provide you 10/10 tester results.
I have 7 Years of expertise in setup and management of different Linux web hosting servers like CentOS, RedHat, Ubuntu, Debian etc. web hosting panels like cpanel, plesk, webmin , ispconfig, zpanel, Direct admin,virtualmin etc.
thanks and regards!