simple question

[Jan Stifter]

hello,
my qmail box receives mail for 2 domains, domain A and domain B.

domain A is handled locally with vmailmgr and virtual users it is in
the virtualdomains control file). 

mails for domain B are only relayed to another box (it is in the
smtproutes control file as domainB:ip-adr:25).

the problem:
I would like to forward one users mail joe@domainB to joe@domainA (and
only this user). how can i do this, when there is no local user for
domainB?

many thanks in advance
jan