control/me

[Darcy Buskermolen]

I have a question that may have been covered else ware or maybe even in the
docs but I can't find it. 

Is it possible to have qmail-smtp use an environment var as apposed to
control/me for echoing back the "hostname" 
ie 220 $ENV{host} ESMTP
 instead of 
220 control/me ESMTP

??

Thanks