Well, the problem its still there , all mails are sent to gmail SPAM folder. Some friend used his own server to test my domain and mails are sent ok to inbox. I even changed PTR on ISP and accordinly hostname, mailname, mx, a and cname records. The exact same result. I asked hosting provider about IP and they told me I'am the first one using it. any spam test are fine . This problem is killing me.