Mockup email message view layout

Mock-up of a email message document layout. On the preview area, there should be presented the email content, both html and text options (with a switch button).
A previewable layout template should be used (used in Note, File, etc).
On the right side, the metadata side, there should be present on top the main mail information, like, sender, date of send, receivers, etc.
Tags should be available to read/write
Attachments should be available in a list with name and icon of mimetype. Each attachments item is a link to download its content.
A small screen mockup should also be provided.