This article will explain how to change the default view in the email pane in 123-mail webmail.
Login to the 123-mail webmail.
Click on the Configuration icon in the main toolbar.
Click on the E-mail folder in the left hand pane.
Click on the subfolder Preferences
Click on the No button on collect while sending E-mails.
Click on the No button on collect while reading E-mails.
Click on the Save icon to store the changes.