> ## Documentation Index
> Fetch the complete documentation index at: https://docs.instantcampaign.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# AI inbox preview

> See how Gmail's AI Overview and Apple Intelligence are likely to summarise your email before you send it, and fix what a summary would drop.

Gmail (AI Overview and AI Inbox) and Apple Mail on iOS 26 (Apple Intelligence) now show a short AI summary of an email, and on iPhone the summary replaces your preheader in the message list. These summaries read the **body** of the email, not the subject line. If the body is mostly images, or your offer sits below a long introduction, the summary can leave it out.

InstantCampaign checks every email for this before you send it and gives it a **summary score** out of 100.

## Where to find it

* **Campaign plan page**: the **AI inbox** card under **Ready to send** shows each email's score and warnings. See [Campaign strategist](/guides/audience-and-campaigns/strategist).
* **Email builder**: open the **Deliverability score** panel from the toolbar. The **AI inbox** section is below the audit.

## What is checked

| Check | Warns when |
| - | - |
| **Image-only body** | The email is almost all images. A summary has no text to work with. |
| **Text-to-image ratio** | There is very little live text for the number of images. |
| **Preheader** | The email has no preheader, either on the campaign email or hidden in the HTML. |
| **Call to action** | The first call-to-action link or offer starts more than about 200 characters into the text, or there isn't one. |
| **Key facts** | A price, discount, date or deadline first appears after the opening paragraph. |
| **Hero image alt text** | The main image has no alt text. |

These checks are **warnings only**. They never stop you from approving or sending a campaign. Price, discount and date detection works on English copy. Other languages still get the other checks.

## Preview the summary

Click **Preview summary** to see:

* a **Gmail AI Overview**-style summary (one or two sentences)
* an **Apple Intelligence**-style one-line summary
* the facts, such as a price or deadline, that the summaries left out
* an updated score and the reasons for it

The preview uses one AI text generation from your monthly allowance. If you preview the same content again, the saved result is shown and nothing more is used. If your allowance is used up, or the AI model doesn't answer, you still get the score from the checks.

In the builder, the preview uses the **saved** version of the template, so save your changes first.

<Note>
  The summaries are a simulation. Gmail and Apple don't publish their summarisers, so the exact wording in a real inbox will differ. The checks point at what makes any summary drop your message: no live text, and important details placed too low.
</Note>

## Who can use it

Everyone who can see the plan page sees the warnings. **Preview summary** needs permission to edit campaigns.

## Tips

* Put the offer, the price and the deadline in the first paragraph, in live text.
* Add a preheader that states the offer.
* Keep a call-to-action link near the top. You can repeat it lower down.
* Give the hero image alt text that says what the image says.


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.