I have a ISP that is rejecting all my emails because they say the sender domain is unknown
My confusion is that i am relaying the email via my email server
the linux box is flanders.mydomain.domain
in my sendmail.mc i have
part of the bounce header has
Received: from flanders.mydomain.com [xxx.xxx.xxx.xxx] by mail.mydomain.com with ESMTP
(SMTPD-11.5) id 60a80000ba1d34e9; Mon, 3 Oct 2011 13:27:16 -0500
is there something else i need to do?