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

# Email a file attachment

> Send a single email with a CSV or Excel attachment of your transformed data to up to 10 recipients, with merge tags for personalized subject and body.

The **Email a file attachment** step sends a single email with a CSV or Excel file attached to a fixed list of recipients. Use it for daily reports, weekly accruals, or one-off sends where the recipients are static and the data is the file. (For one email per row, use [**Send emails by row**](/product/integration/send-emails) instead.)

## Email a file attachment

The **Email a file attachment** step sends an email to a list of recipients with a custom message and an attached CSV or Excel file built from your flow's data.

## Setup

<Steps>
  <Step>
    Connect your flow to **Email a file attachment**.
  </Step>

  <Step>
    Pick an **Email template:**

    1. **Parabola branded (default):** sends a branded email.
    2. **Plain text without branding:** sends a simple plaintext email.
    3. **Delivery details:** regardless of template, emails send from `team@parabolamail.com`. Use **Reply-to** to direct responses elsewhere.
  </Step>

  <Step>
    Fill in the required fields:

    1. **Email recipients:** up to ten addresses.
    2. **Email subject:** the subject line.
    3. **Email body:** the message.
  </Step>

  <Step>
    In **Advanced settings**, set **Reply-to** so responses go to the right inbox.
  </Step>
</Steps>

## Use merge tags

You can insert dynamic values in **Email recipients**, **Email subject**, **Email body**, **File name**, and **Reply-to** by wrapping a column name in `{}`.

Example: `{Name}` inserts the value from the first row of the `{Name}` column on the first connected input.

* To strip merge-tag columns from the attached file, open **Advanced settings** and turn on **Remove merge columns from output file**.

## Multiple inputs (Excel only)

If **File format** is set to `Excel`, the step accepts multiple inputs. Each input becomes its own tab in the generated file. Give every tab a unique name.

## Security

Files sent through this step are stored in Amazon S3 so the data reloads when you next open the flow. All connections use SSL and are encrypted.

## Limitations

* Maximum email size: 30 MB.
* Zero-row inputs cause no email to be sent.
* Up to 10 recipients per send.
* This step attaches the file directly to an outbound email. By contrast, **Generate CSV file** and **Generate Excel file** create a downloadable file and email a link to the flow owner. Files generated by those steps also land in the flow's Run history.

## Related steps

* [Send emails by row](/product/integration/send-emails) — to send one email per row instead of one email total
* [Generate CSV file](/product/integration/csv-file) — to make the file available in Run history with a download link
* [Generate Excel file](/product/integration/excel-file) — for multi-tab Excel exports
* [Send Slack message](/product/integration/slack) — when the recipients hang out in Slack rather than email
* [Filter rows](/product/transform/filter-rows) — to keep the attachment scoped to relevant rows