Plesk+Qmail config: remote being treated as local?

[rjc_sysadmin]

Hi, I have a plesk/qmail configuration problem and googling around the qmail forums doesn't seem to allow for the plesk/qmail implementation:

Background:
- The domain 'domain.co.uk' is hosted within a Plesk 8.1 VPS on Red Hat Fedora 4 - but only the domain's A record is pointed to this server, the MX is external.
- There are no user mailboxes or mail services for this particular domain, but there are for other VPS domains.
- The MTA is qmail invoked via sendmail by cgi script.

Problem:
I am trying to send to [email protected] but qmail is treating the requests (quite reasonably) as local, rather than remote, and returning an error
The cgi-script could contain any email address, therefore it needs to be a catch-all solution, preferably that doesn't upset any Plesk qmail settings now or in the future...

Logs:
/var/qmail/control/locals - contains the single entry 'localhost'
/var/qmail/control/virtualdomains contains the entry for domain.co.uk amongst the other virtual domains on the VPS
/usr/local/psa/var/log/maillog contains:
Jun 30 04:42:43 ip-xxx-xxx-xxx-xxx qmail: 1183117363.573915 new msg 14170298
Jun 29 04:42:43 ip-xxx-xxx-xxx-xxx qmail: 1183117363.573978 info msg 14170298: bytes 1218 from <[email protected]> qp 26512 uid 10002
Jun 29 04:42:43 ip-xxx-xxx-xxx-xxx qmail: 1183117363.657921 starting delivery 51: msg 14170298 to local [email protected]
Jun 29 04:42:43 ip-xxx-xxx-xxx-xxx qmail: 1183117363.677429 delivery 51: failure: This_address_no_longer_accepts_mail./

I'm quite new to running a server beyond the basics - anyone know if there's there a plesk-friendly way to force 'remote' for one VPS domain?

 

[breun]

Disable mail for the domain in Plesk.

 

[rjc_sysadmin]

Ah.
Thanks for that simple but effective answer, breun, you really helped me out here - I couldn't step back from the problem and see the wood for the trees, there...
I learnt an awful lot about MTA's though, so it's all for the best.
Thanks again,

rjc