I have a mailing list that I am working with, I maintain, and host my own server. That includes the smtp server using sendmail. I'm running php, and apache. My problem is that my base of subscribers, are from a university as the list is for an organization within the university. That university keeps bouncing my e-mails back; from what i can tell its because the recieved: header is still showing up as:

Received: from localhost.localdomain

I'm masquerading as the new domain address, and the reply-to shows up fine, but the received header still is getting my messages back. Any help with a way around this?

Thanks,

Rob