sendmail + virtusertable

[Meshbah Uddin Ahmed]

i have installed sendmail with mailertable and virtusertable. i m facing
prb-

in virtusertable-

@abc.com          xyz at yahoo.com

so, when i send mail to  abc at abc.com it sends to xyz at yahoo.com
but when i send mail abc at abc.com with cc xyz at abc.com it only sends 1st email
id- abc at abc.com, not xyz at abc.com

where is my prb??? can u pls fix it?

Meshbah