Start Outlook
From the menu choose "Tools" > "E-Mail Accounts..."
Select “View or change existing e-mail accounts”
Click "Next"
Select the account you want to verify and click "Change..."
The "Incoming mail server (POP3)" field must contain pop.bluewin.ch and the "Outgoing mail server (SMTP)" field must contain smtpauth.bluewin.ch
The "User Name" field must contain your e-mail address without @bluewin.ch
Type your e-mail password into the "Password" field
Click "More Settings..."
Go to the "Outgoing Server" tab
Check the option "My outgoing server (SMTP) requires authentication"
Check the option "Use same settings as my incoming mail server"
Go to the "Advanced" tab
Enter the number 587 into the "Outgoing server (SMTP):" field
Click "OK"