Adding custom HTML

This article describes how to enhance your emails with custom HTML-formatted content.

Updated over a week ago

Email Enhancements are available on all Mixmax plans, including the Free plan. Check out our pricing page for more information.

For Outlook-based users, Mixmax Email Enhancements are currently supported only in the web app (for Sequences and Rules). To learn more about the Mixmax integration with Outlook, check out How to use Outlook with Mixmax.

You can use the Mixmax Custom HTML enhancement to add HTML to any email message in Gmail. For example, you can insert content from an external source, code your own content, or even add a unique signature. You can also add tables, images, or other items directly to your email.

The Mixmax Custom HTML enhancement is a good fit if you want to add snippets of formatted content to your messages, such as a small table, multiple images with formatting specifications, or links or embedded items directly from another website.

On the other hand, our Custom HTML enhancement is not a good fit for creating complete messages with full formatting throughout. You will not be able to use JavaScript or other scripting languages, and any formatting you want to use will need to be defined directly in the HTML snippet you create.

Creating custom HTML requires your knowledge and experience with HTML. Mixmax cannot assist with creating or editing custom HTML in your messages. Additionally, HTML can render very differently in different email clients. Your recipients who use Gmail may see something different than your recipients who use Outlook. We recommend testing messages in various email clients before sending them to your recipients. There are also third-party testing tools available which can help with this.

How to add Custom HTML to an email

In this example, we'll insert a third-party countdown timer.

  1. Go to the third-party site Sendtric and create a custom countdown timer. Copy the provided HTML.


2. In your Mixmax compose window, click the Mixmax Icon in the right-hand corner and then select Custom HTML. You can also use the slash command /html .

Custom HTML

3. Paste the HTML from Sentric into the editor, and click Insert Custom HTML in the bottom left corner:

Insert custom HTML

4. You will see the custom HTML rendered in your email, ready to send:

Rendered HTML

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