im using one database with 4 companys as a SAAS, 
Each company has it own website and domain.

Every website is pointed to the same database.

When i acess domain1.com it goes to the right website
but when i acess www.domain1.com it goes to my first company website maindomain.com 

Anyone know how to fix this? Odoo Suports has my ticket for more than 15 days and cant do anything.