I have a VPS and it's running ISPConfig 3.1. I used this guide to install the server: https://www.howtoforge.com/tutorial...l-pureftpd-bind-postfix-doveot-and-ispconfig/ For some reason i cannot receive e-mails but i can send them. What i have done: The main server hostname when looking in /etc/hostname = noc The mail servername when looking in /etc/mailname = noc.telforce.nl Looking in /etc/postfix/main.cf it says = myhostname = noc.telforce.nl In the web manager i have created an email domain called noc.telforce.nl Under email mailbox i have created a box called = [email protected] In the DNS panel of my provider i have created these records: mail.noc.telforce.nl. A 220.127.116.11 noc.telforce.nl. TXT "v=spf1 a mx ip4:18.104.22.168 ~all" noc.telforce.nl. MX mail.noc.telforce.nl. 0 noc.telforce.nl. MX mail.noc.telforce.nl. 10 noc.telforce.nl. A 22.214.171.124 When i use roundcube to login with the account [email protected] i can send an email to my gmail account and receive it fine but when i reply i don't receive the email and the sender account does NOT get a bounce. There are also no errors in the mail.log and also the account [email protected] can't send an email to itself when using roundcube webmail, it's is sent but never received. What i can i do to troubleshoot?