I am running a mail server which followed the Perfect server tutorial hosted here for Ubuntu 1604 using Apache2 for the web server and MySQL for the DB server. Originally, I was using ALT-Port SMTP and email reflector as my ISP had blocked port 25. I have since moved my server to a VPS server with 1and1, who do not block port 25. I removed the relay entry from my /etc/postfix/main.cf as well as the reference to the /etc/postfix/sasl_passwd as they are no longer needed now that I no longer need a relay. I have set up my DNS server and domain to reflect the change in public IP and can receive mail without issue. Sending mail is where I am having issues. I cannot tell if the mail is getting out and being blocked by the recipient or if there is something going on with my server. Attached is my main.cf file and master.cf files. I checked my MX records and the DNS pointers at my domain registrar and it is pointing to my server. Kinda lost as to what it could be. Checked the logs and there is nothing in there indicating an error. Any assistance would be appreciated.