Webmail shows Plesk default page.
Webmail bindings are not created in the
%windir%\System32\inetsrv\config\applicationHost.config configuration file.
Two webmail services belong to one website in IIS.
- Stop the issued mail service (IIS > MailEnable WebMail > Stop)
Edit bindings for one of the webmail services:
- Go to IIS > webmail(horde)/MailEnable WebMail > bindings
- Delete the binding of issued website from one of the webmail services.
- Start the webmail service.