Tabs allow you to save incoming E-Mails in the Inbox folder separated by senders. There are the following options:
enable or disable tabs
assign incoming E-Mails to a category
edit the tabs view
How to assign incoming E-Mails in the inbox to categories:
Select the folder in the folder tree.
Select the category
in the categories bar. E-Mails that have not been assigned to a category yet, are displayed in the list.If the categories bar is not displayed, enable the categories bar in the E-Mail settings.
Drag an E-Mail from the list to a tab in the categories bar and drop it there.
Depending on the inbox tabs settings, you are asked whether you only want to assign this single message to the category or all existing and future messages of this sender.