554 email error - rejected mail

[travlang]

Server name is www5.xxxx.com and virtual domain on this server is www.yyyy.com

When sending to certain domains we get:
554 Your access to this mail system has been rejected due to
the sending MTA's poor reputation

I think it is because the header of the email shows
Received: from www5.xxxx.com (www5.xxxx.com [216.240.132.99]) by domain.com (8.13.6.20060614/8.13.6) with ESMTP id m6PFHWKw022189 for <[email protected]>; Fri, 25 Jul 2008 11:17:32 -0400 (EDT)
Received: from [74.238.119.86] (helo=zzzz) by www5.xxxx.com with esmtp (Exim 4.24) id 1KMS7Y-00085f-H9 for [email protected]; Fri, 25 Jul 2008 11:34:28 -0700

and the xxxx and zzzz are different and the receiving server thinks spam.
How can I change send mail so the sending domain (virtual domain) is the same as the return address of the sender?

Howard

 

[nobaloney]

That's not what the error says at all. It says that mail from your IP# has a high content of what the recipient thinks is spam. (That's what reputation means.)

For more help, please look here.

Jeff