I currently rent a dedicated server with an IP and I've added a domain with IP with DNS records (domain.com/mail.domain.com), MX record, SPF record etc all pointing at

The problem is when I send an email from that domain in the header it shows the server's hostname and IP ( instead of its dedicated IP. Is it possible to only show its dedicated IP and domain's hostname instead?

I am using Postfix & Dovecot on Ubuntu 14.04


  • what... is that IP on the same machine? Jan 3, 2017 at 1:16

1 Answer 1


nano /etc/postfix/main.cf

add line: smtp_bind_address =

restart postfix, send mail to test.

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