Draft Gmail Message
draft_gmail_messageCreate draft emails in Gmail with support for attachments, alias addresses, and reply threading. Compose new messages or reply to existing threads.
Instructions
Creates a draft email in the user's Gmail account. Supports both new drafts and reply drafts with optional attachments. Supports Gmail's "Send As" feature to draft from configured alias addresses.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| user_google_email | Yes | The user's Google email address. Required for authentication. | |
| subject | Yes | Email subject. | |
| body | Yes | Email body (plain text). | |
| body_format | No | Email body format. Use 'plain' for plaintext or 'html' for HTML content. | plain |
| to | No | Optional recipient email address. | |
| cc | No | Optional CC email address. | |
| bcc | No | Optional BCC email address. | |
| from_name | No | Optional sender display name (e.g., 'Peter Hartree'). If provided, the From header will be formatted as 'Name <email>'. | |
| from_email | No | Optional 'Send As' alias email address. Must be configured in Gmail settings (Settings > Accounts > Send mail as). If not provided, uses the authenticated user's email. | |
| thread_id | No | Optional Gmail thread ID to reply within. | |
| in_reply_to | No | Optional RFC Message-ID of the message being replied to (e.g., '<message123@gmail.com>'). | |
| references | No | Optional chain of Message-IDs for proper threading. | |
| attachments | No | Optional list of attachments. Each can have: 'url' (fetch from URL — works with MCP attachment URLs from get_drive_file_download_url / get_gmail_attachment_content), OR 'path' (file path, auto-encodes), OR 'content' (standard base64, not urlsafe) + 'filename'. Optional 'mime_type'. Optional 'content_id' (string) makes the attachment inline-rendered: it lands in a multipart/related part with `Content-ID: <content_id>` and `Content-Disposition: inline`, and the HTML body can reference it via `<img src="cid:<content_id>">` (RFC 2392). Without `content_id` the attachment is a regular multipart/mixed attachment. | |
| include_signature | No | Whether to append the Gmail signature from Settings > Signature when available. Defaults to true. | |
| quote_original | No | Whether to include the original message as a quoted reply. Requires thread_id. Defaults to false. |
Output Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| result | Yes |