Postfix problem Hi, Update.. I am able to send emails and I can only receive emails been sent to email@example.com and not firstname.lastname@example.org When sending the email to email@example.com I get this error Remote host said: 550 #5.1.0 Address rejected firstname.lastname@example.org Any way to solve this? Thank you in advance! #### Solved .. I have been using my ISP SMTP server and all went fine when I changed to smtp.mydomain.com at my domain control panel.