A message that is part of a conversation has an icon with a number that indicates the number of messages in that thread. Clicking on that button will display all messages belonging to this conversation, including messages of contacts that are not ...

Since Unibox focuses on a clutter free UI detailed recipient / sender information is hidden by default. However you can easily access the recipients and senders of a message by clicking the "Recipients"-Button in the top left corner of a message.

You can apply various filters to your messages. Unibox allows to show only unread or starred messages, messages with attachments or messages from contacts in your address book.

To open the filter menu, click on the filter button above your con...

An email can contain inline and non-inline attachments. While inline attachments are meant to be part of the message body, non-inline attachments are added to the end of the message.

The "Attachments"-button allows to customize what is shown i...