curl -X POST "https://server.smartlead.ai/api/v1/campaigns/12345/forward-email?api_key=YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "message_id": "msg-abc-123",
    "stats_id": "stats-abc-123",
    "to_emails": "manager@company.com,sales@company.com",
    "cc_emails": "teamlead@company.com",
    "bcc_emails": "audit@company.com",
    "forward_email_subject": "FYI – please review",
    "forward_email_body": "<p>Sharing this thread for your visibility.</p>"
  }'

import requests

API_KEY = "YOUR_API_KEY"

def forward_email(
    campaign_id,
    message_id,
    stats_id,
    to_emails,
    forward_email_body=None,
    forward_email_subject=None,
    cc_emails=None,
    bcc_emails=None,
):
    """Forward an email to other recipients"""
    payload = {
        "message_id": message_id,
        "stats_id": stats_id,
        "to_emails": to_emails,
    }
    if forward_email_body is not None:
        payload["forward_email_body"] = forward_email_body
    if forward_email_subject is not None:
        payload["forward_email_subject"] = forward_email_subject
    if cc_emails is not None:
        payload["cc_emails"] = cc_emails
    if bcc_emails is not None:
        payload["bcc_emails"] = bcc_emails

    response = requests.post(
        f"https://server.smartlead.ai/api/v1/campaigns/{campaign_id}/forward-email",
        params={"api_key": API_KEY},
        json=payload,
    )

    return response.json()

# Forward with default subject and body (backwards-compatible)
forward_email(
    campaign_id=12345,
    message_id="msg-abc-123",
    stats_id="stats-abc-123",
    to_emails="manager@company.com",
)

# Forward with custom subject and body
forward_email(
    campaign_id=12345,
    message_id="msg-abc-124",
    stats_id="stats-abc-124",
    to_emails="sales@company.com,support@company.com",
    cc_emails="teamlead@company.com",
    bcc_emails="audit@company.com",
    forward_email_subject="FYI – please review",
    forward_email_body="<p>Sharing this thread for your visibility.</p>",
)

const API_KEY = 'YOUR_API_KEY';

async function forwardEmail(campaignId, body) {
  const response = await fetch(
    `https://server.smartlead.ai/api/v1/campaigns/${campaignId}/forward-email?api_key=${API_KEY}`,
    {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify(body),
    }
  );

  return response.json();
}

// Forward with default subject and body (backwards-compatible)
await forwardEmail(12345, {
  message_id: 'msg-abc-123',
  stats_id: 'stats-abc-123',
  to_emails: 'manager@company.com',
});

// Forward with custom subject and body
await forwardEmail(12345, {
  message_id: 'msg-abc-124',
  stats_id: 'stats-abc-124',
  to_emails: 'sales@company.com,support@company.com',
  cc_emails: 'teamlead@company.com',
  bcc_emails: 'audit@company.com',
  forward_email_subject: 'FYI – please review',
  forward_email_body: '<p>Sharing this thread for your visibility.</p>',
});

{
  "ok": true,
  "messageId": "<generated-message-id@smartlead.ai>",
  "status": "success"
}

{
  "statusCode": 400,
  "error": "Bad Request",
  "message": "\"forward_email_body\" must be a string"
}

{
  "ok": false,
  "error": "Email account not found!",
  "status": "error"
}