failed signups

[Kelly Thomas]

I get all these "bounced eMails" from my manila servers
as people try and join as a member and fail. (see example below)

what can I alter globally to have the email indicate somehow which  
site it came from?

Thanks!
/kelly

On Mar 7, 2008, at 11:00 AM, Mail Delivery System wrote:
> To: tsuruda at gtl.isas.ac.jp
> From:  xxx
> Subject: Please confirm your membership
>
> Thanks for requesting to sign up!
>
> There's just one more step. Please click the link below to confirm  
> your membership.
>
> http://clubhause.com/member/signup?c=93xxxxas.ac.jp
>
> Once your account is activated, you'll have access all of our  
> services.
>