Guide contents

Using Email Builder

Build content with the current drag-and-drop editor and preview it on different devices.

Platform checked: 2026-11-12 · Guide updated: 2026-11-13

Steps have been checked against the live platform. Screenshots are cropped to protect account and customer data.

Before you start

  • Choose Start from Blank on Add Letter and keep the original letter tab open.
  1. 01

    Find your way around the editor

    The editor has Save at the top and Undo, Redo, Desktop, Mobile and Preview in its toolbar. The right side provides Content, Blocks, Body, Images and Uploads, rather than the older Padding / Style / Content tabs.

    EPOST Email Builder content modules and SaveOpen full-size screenshot
    EPOST Email Builder content modules and Save
  2. 02

    Drag in a content module

    Choose modules such as Heading, Paragraph, Image and Button under Content and drag them into the central canvas. Start with a simple structure, then add copy, images and action buttons.

  3. 03

    Edit text and links

    Select an inserted module. Paragraph offers font, bold, lists and Insert/Edit Link in its text toolbar, with Font Size, Color, Text Align, Line Height and Links on the right.

    Paragraph text, links and Container Padding settingsOpen full-size screenshot
    Paragraph text, links and Container Padding settings
  4. 04

    Adjust spacing and modules

    Use Container Padding under General to adjust spacing. Delete and Duplicate appear at the top of module settings. Check the selected block before moving or deleting content, and retain the system online-preview and unsubscribe content.

  5. 05

    Preview different devices

    Select Preview to switch between Desktop, Tablet and Mobile and inspect dark mode. Use Exit Preview to return. Check images, buttons and linked text for overflow.

    Desktop, Tablet and Mobile preview in the editorOpen full-size screenshot
    Desktop, Tablet and Mobile preview in the editor
  6. 06

    Save and return to the form

    Select Save at the top right, return to the original letter tab, then check the name, subject and content and select Complete. Closing the editor alone does not complete the original letter form.

Notes and troubleshooting

  • The paragraph shown is an unsaved demonstration. No existing letter was changed and no email was sent.

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