Creating and Editing Emails in Interspire

Interspire Email Marketer includes multiple editors to help you create and customize email content based on your workflow and preferences.

These editors are used to build and modify newsletters, email templates, autoresponders, and other content types. Each editor is accompanied by a separate plain-text input box, allowing you to provide both HTML and text versions of your email for improved deliverability.

Available Editors

Interspire provides three email editors:

Editor	Best For	Hosted Where	Key Features
TinyMCE	HTML editing, code imports, API content	Locally hosted	WYSIWYG UI, full HTML access
BuilderJS	Modern visual editing, self-hosted	Locally hosted	Drag-and-drop, inline CSS styling
Unlayer	Visual design with structured components	Remotely loaded	Drag-and-drop interface, mobile-ready output

These editors are available when creating:

• Newsletters
• Email templates
• Autoresponders

In most other cases, say for exmple when creating dynamic content tags, the TinyMCE editor is used.

Choosing the Right Editor

When creating a new email or template, you’ll be prompted to select one of the available editors. Your choice depends on your workflow:

• TinyMCE: Ideal for the WYSIWYG word processor style editor, and working with raw HTML or importing templates from external builders (e.g., Litmus, Stripo).

• BuilderJS: Recommended for users who want a modern visual builder that’s fully self-hosted unlike Unlayer that is remotely loaded.

• Unlayer: Best for drag-and-drop visual design with structured blocks.

Note

Unlayer is not hosted locally and is disabled by default. Because Unlayer is loaded remotely rather than served from your own installation, access to it must be granted explicitly in two steps: an administrator first enables it system-wide, and then it must be enabled for each individual user before that user can select it. Until both steps are completed, Unlayer will not appear as an available editor.

⚠️ Editor selection is permanent per item. Once a newsletter, template, or autoresponder is created with an editor, you cannot change the editor for that item.

Tip

When you create a new campaign or open a template, Interspire opens the editor you’ve set as your default in your user account. See Advanced User Settings for more information.

BuilderJS Improvements v8.7.5

In version 8.7.5, the BuilderJS drag-and-drop editor was upgraded to its latest major version, giving you a more reliable and responsive editing surface. This release also includes the following enhancements:

• RSS widget: Embed dynamic feed content directly into your email by dragging in the RSS widget. You can configure display options such as the number of items to show and whether to display thumbnails, so the email automatically reflects your latest feed entries.
• Isolated preview: Email previews now render inside an isolated frame, so the editor’s styles no longer conflict with the admin interface. Previews appear much closer to how your recipients will actually see the email.

Plain-Text Version

Regardless of which editor you choose, every email can include a plain-text version as well. This version is critical for:

• Improving deliverability
• Supporting legacy or security-focused email clients
• Providing a fallback when HTML cannot be rendered

See Text Editor for information on the plain‐text editor.

You can also validate your email, ensuring that it displays correctly in a variety of popular email clients.

See Validating an Email for information on checking how you email displays in popular email clients.

Email Preheader Text v8.7.2

What is Preheader Text?

Preheader text (also called “preview text”) is the snippet of text that appears after the subject line in email inboxes. It provides recipients with a preview of your email content before they open it, significantly impacting open rates.

The preheader field is available when using the TinyMCE or BuilderJS editors. When using Unlayer, the preheader is configured within the Unlayer editor itself.

Where to Find the Preheader Field

The preheader text field appears in the content editing step of:

• Newsletters — Step 2 of newsletter creation
• Autoresponders — Step 4 of autoresponder creation v8.7.5
• Email Templates — Template content editing screen v8.7.5

Tip

In v8.7.5, preheader support was extended to autoresponders and email templates. Previously, it was only available for newsletters.

Best Practices for Preheader Text

To make the most of preheader text in your emails:

1. Keep it concise - Most email clients display 40-130 characters
2. Complement your subject line - Don’t repeat it; expand on the message
3. Include a call-to-action - Give recipients a reason to open
4. Test across clients - Preview text displays differently across email clients