Plesk 10 with SmarterMail

[Dwagar]

I have SmarterMail setup with Plesk but had a small issue. When I am logged into Plesk and go to my Mail accounts and click the icon to login to the webmail it goes to http://webmail.domain.com/login.aspx?email=myemail and doesn't automatically log me into my email account. Shouldn't Plesk use the automatic login that SmarterMail has a function for?

If I change the URL to http://webmail.domain.com/login.aspx?email=myemail&password=mypass then it will log me into my webmail automatically.