[Mailman-Users] Trouble posting to one list

[Bryan Dyson]

I get this error when I post to my test list.
I do know that other lists on the same box work just fine. 
Would anyone have an Idea where to start looking to fix this?
Your message did not reach some or all of the intended recipients.

      Subject:	From office test 1-12-04
      Sent:	1/12/2004 8:57 AM

The following recipient(s) could not be reached:

      'test4-request at listserv.solanapres.org' on 1/12/2004 9:08 AM
            The e-mail account does not exist at the organization this
message was sent to.  Check the e-mail address, or contact the recipient
directly to find out the correct address.
            <mail.SBPC #5.1.1 smtp;550 5.1.1
<test4-request at listserv.solanapres.org>... User unknown>

Thanks,

Bryan Dyson
LAN/db Administrator
Solana Beach Presbyterian Church
858-509-2580
Shelby 5.4.1561