Routing through a user's mailHost

[Van Rontal]

Hi,   I hope somebody can please, please help me on this. It's very urgent..   I've setup a top level mailserver ( tigger.mydomain ) using qmail-ldap and it's main purpose is to route/relay incoming mails from the outside to two separate mailservers, namely: pooh.sub1.mydomain and boardwalk.sub2.mydomain.   My question is how does tigger know to which mailserver to route for a particular username that is listed in my ldap.  I've provided a mailhost attribute in my ldap( whether it's pooh or boardwalk ) and i've enabled relaying using tcpserver and i've also created ~control/smtproutes:     sub1.mydomain:[pooh's IP] sub2.mydomain:[boardwalk's IP] mydomain:[pooh's IP] mydomain:[boardwalk's IP] :[IP for outgoing mails]   The different situations and outcomes are: -if smtproutes doesn't exist, mail is delivered locally postmaster@tigger -if it does, it's sent to boardwalk.sub2.mydomain even if the mailHost of a user is listed as pooh.sub1.mydomain in my ldap -if lines 3 and 4 of smtproutes are ommited, the incoming mail is sent back to [IP for outgoing mails], from which where it passed through before arriving at tigger   If anyone can help,  I really need the answer soon...   Van