---
description: Invalid submissions in Email Security.
title: Invalid submissions
image: https://developers.cloudflare.com/og-docs.png
---

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# Invalid submissions

Last updated Aug 24, 2026|Copy as Markdown|[View as Markdown](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/cloudflare-one/email-security/submissions/invalid-submissions/index.md)|[Agent setup](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/agent-setup/)

A submission is invalid when:

* A submission has no EML file attached.
* A submission has been made with an incorrect file extension.
* A submission was made to the wrong team or user alias.

To ensure your submission is valid:

* Ensure your submission has a file attached with a `.eml` file extension.
* Ensure you configure the domain you are submitting emails for.
* Ensure policies are configured correctly.

To view invalid submissions:

1. Log in to [Cloudflare One ↗](https://one.dash.cloudflare.com/).
2. Select **Email security** \> **Submissions**.
3. Select **Invalid submissions**.

You can search by submission ID or submitted email.

You can filter based on **Date Range** and **Submitted by** (which will list emails that made the invalid submissions). Once you have configured your desired filters, select **Apply filters**.

## Enable notifications

To enable Invalid submission email notifications:

1. Log in to [Cloudflare One ↗](https://one.dash.cloudflare.com/).
2. Select **Email security** \> **Settings**.
3. Go to **Invalid submission emails** and turn on **Invalid submission email notifications**.

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