I have three sites in ISPConfig, and hay install Squirrelmail in the folder of ISPConfig /home/admispconfig/ispconfig/web/, I create folder call "mail", and work perfect, but there are a problem. Sites: www.domain1.com www.domain2.com www.domain3.com Domain Server name is www.domain1.com www.domain1.com:81/web open page Squirrelmail, and put a user name web1_Test1 ([email protected]), and go in. But if I try with user another domain web2_Test2 ([email protected]), I can see my mail, but the problem is when I send email dont go with the correct domain [email protected] and the correcto mail should be [email protected]. Then I reinstall squirrel, but I put the install in them own folder Web /var/www/web1/web and make three installations of squirrelmail. One for each site, and I things than is not correct. Should be one installations for all sites in my server.