vpopmail 4.9.6-1 with oracle

[vinient]

i have problem with vpopmail with oracle iam trying to install in linux oracle running fine   iam trying to add domain   iam getting username exists   when i check in oracle listner log looks like as follow   08-DEC-2000 13:43:09 * (CONNECT_DATA=(SERVICE_NAME=orcl)(CID=(PROGRAM=)(HOST=dns 1)(USER=root))) * (ADDRESS=(PROTOCOL=tcp)(HOST=200.100.52.2)(PORT=1049)) * esta blish * orcl * 0 here one thing i anylised is where is this user=root coming   out side when try to add table to field iam getting oracle user   i dont where iam doing mistake please can some one reply soon if they are using already   thanks advance for the help   any help