Create with Advanced Editor | Groupmail Help Centre

The Advanced Editor gives you full control over your email by letting you write or paste your own HTML. It's ideal when you have a custom design, an email exported from another tool, or a newsletter hosted on a web page.

Open the Advanced Editor

From the Messages page, click New Message and select Advanced. The editor opens with familiar fields at the top — Subject Line and Preheader Text — plus AI buttons for generating suggestions.

Fig. 1 — The Advanced Editor with the HTML code editor and starter template

Below that is the Message Content area with two main tabs: HTML Content and Plain Text.

Write or Paste HTML

The HTML Content tab has two sub-tabs. HTML Source opens a full code editor where you write or paste your HTML directly. Groupmail provides a starter template with basic structure and a {{firstname}} merge tag already in place.

Fig. 2 — Subject line entered with the starter HTML template in the code editor

The toolbar above the editor provides quick access to Merge fields, Image insertion, Link creation, a Beautify button to clean up your code formatting, and a Preview button.

The Advanced Editor is perfect when you need pixel-perfect control — paste HTML from any email builder and Groupmail sends it exactly as designed.

Use a Web Page URL

The second sub-tab under HTML Content is Web Page URL. If your email is already hosted online, paste the URL here and Groupmail will fetch the content automatically when sending your campaign.

Fig. 3 — The Web Page URL tab with a URL field and Attachments section

Web Page URL is great for teams that manage email templates in a CMS or version-controlled repository — update the page and Groupmail always sends the latest version.

Below the editor, the Attachments section lets you attach files like PDFs or images to your email.

Preview Your Email

Once you've pasted your HTML, click Preview in the toolbar to see the rendered email. The preview modal shows your email in desktop, tablet, and mobile views so you can check the layout across devices.

Fig. 4 — Full HTML pasted into the code editor

Fig. 5 — Preview showing the rendered email as subscribers will see it

Save, Test, and Send

When everything looks right, click Save. You'll see a confirmation toast.

Fig. 6 — Message saved confirmation with the full HTML visible

Use Check to run content moderation and Test to send yourself a preview email. Once you're satisfied, click Send to deliver your advanced email, or save it for later.

Fig. 7 — Test message sent confirmation

Always send a test email to yourself before sending to your full list — HTML rendering can vary between email clients, so it's worth checking in Gmail, Outlook, and Apple Mail.