Webmail unwanted redirect to workspace email page

[AlexandreK]

Hi Guys

I'm on Plesk 8.4 for Microsoft Windows

I have a problem only on 1 site when I try to acces webmail.mydomain.com instead of the normal mailenable login access I have the workspace email login. It look like it a redirect to this page

Other site on this server have normal access to mailenable webmail

Thanks in advance