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

# Send Reply

> Reply to a specific Gmail message with optional attachments.

The **Send Reply** action sends a response to a specific Gmail message while
preserving the original conversation. It addresses the original `Reply-To`
header when present, otherwise the original sender.

## Inputs

| Input                   | Type                   | Required | Description                                                    |
| ----------------------- | ---------------------- | -------- | -------------------------------------------------------------- |
| **Third-party account** | Google account         | Yes      | Gmail account that sends the reply.                            |
| **Message ID**          | String                 | Yes      | Gmail ID of the message being answered.                        |
| **Reply All**           | Boolean                | No       | Include original `To` and `CC` recipients except this account. |
| **Body**                | String                 | Yes      | Reply content.                                                 |
| **Body Type**           | `Plain Text` or `HTML` | No       | Body encoding. Defaults to **Plain Text**.                     |
| **Attachments**         | List of files          | No       | Files to attach to the reply.                                  |

## Outputs

| Output               | Type   | Description                 |
| -------------------- | ------ | --------------------------- |
| **Reply Message ID** | String | Gmail ID of the sent reply. |

The action preserves the original subject and builds reply headers from the
selected message so Gmail keeps the response in its thread.

<Warning>
  **Reply All** can notify every original `To` and `CC` recipient. Leave it off
  when a private response is intended.
</Warning>

## Troubleshooting

<AccordionGroup>
  <Accordion title="The original message is invalid">
    The source message must have a subject, RFC message ID, reply or sender
    address, and Gmail thread ID. Confirm the Message ID points to a complete
    message in the connected mailbox.
  </Accordion>

  <Accordion title="The wrong people received the reply">
    Turn off **Reply All** to reply only to the original Reply-To or From
    address.
  </Accordion>
</AccordionGroup>