Auto-Responders That Actually Read the Email

import hmac
import hashlib
from flask import Flask, request, jsonify
from multimail import MultimailClient

app = Flask(__name__)
client = MultimailClient(api_key="$MULTIMAIL_API_KEY")
WEBHOOK_SECRET = b"your_webhook_secret"

@app.route("/webhooks/inbound", methods=["POST"])
def handle_inbound():
    sig = request.headers.get("X-MultiMail-Signature", "")
    expected = hmac.new(WEBHOOK_SECRET, request.data, hashlib.sha256).hexdigest()
    if not hmac.compare_digest(sig, expected):
        return jsonify({"error": "invalid signature"}), 401

    payload = request.json
    message_id = payload["message_id"]
    thread_id = payload["thread_id"]

    thread = client.get_thread(thread_id=thread_id)
    draft = draft_reply(thread=thread, incoming=payload)

    client.reply_email(
        message_id=message_id,
        body=draft,
        oversight_mode="gated_send"
    )

    return jsonify({"status": "queued"}), 200

import anthropic

client_ai = anthropic.Anthropic()

def draft_reply(thread: dict, incoming: dict) -> str:
    history = []
    for msg in thread["messages"]:
        role = "assistant" if msg["direction"] == "outbound" else "user"
        history.append({"role": role, "content": msg["body_text"]})

    system_prompt = (
        "You are a support agent for Acme SaaS. "
        "Draft a helpful, accurate reply to the customer&"cm">#039;s email. "
        "Be concise. Do not make promises you cannot verify. "
        "If you are unsure about account-specific details, write "
        "[REVIEWER: please fill in X] so the human reviewer knows where to complete the draft."
    )

    response = client_ai.messages.create(
        model="claude-sonnet-4-6",
        max_tokens=512,
        system=system_prompt,
        messages=history + [
            {"role": "user", "content": incoming["body_text"]}
        ]
    )

    return response.content[0].text

from multimail import MultimailClient

client = MultimailClient(api_key="$MULTIMAIL_API_KEY")

def process_review_queue(mailbox_id: str):
    pending = client.list_pending(mailbox_id=mailbox_id)

    for item in pending["messages"]:
        print(f"From: {item[&"cm">#039;from']}")
        print(f"Subject: {item[&"cm">#039;subject']}")
        print(f"Draft reply:\n{item[&"cm">#039;draft_body']}\n")

        action = input("[a]pprove / [e]dit / [r]eject: ").strip().lower()

        if action == "a":
            client.decide_email(
                message_id=item["message_id"],
                decision="approve"
            )
        elif action == "e":
            revised = input("Enter revised reply: ")
            client.decide_email(
                message_id=item["message_id"],
                decision="approve",
                revised_body=revised
            )
        elif action == "r":
            note = input("Rejection note for agent: ")
            client.decide_email(
                message_id=item["message_id"],
                decision="reject",
                rejection_note=note
            )

process_review_queue(mailbox_id="[email protected]")

from flask import Flask, request, jsonify
from multimail import MultimailClient

app = Flask(__name__)
client = MultimailClient(api_key="$MULTIMAIL_API_KEY")

@app.route("/webhooks/delivery", methods=["POST"])
def handle_delivery():
    payload = request.json

    if payload.get("event") == "message.delivered":
        client.tag_email(
            message_id=payload["original_message_id"],
            tags=["auto-replied", "resolved"]
        )

    return jsonify({"ok": True}), 200

# Check for new inbound emails
check_inbox(mailbox_id="[email protected]", filter="unread")

# Load full thread context
get_thread(thread_id="thread_01abc123")

# Read the specific inbound message
read_email(message_id="msg_01xyz789")

# Queue a draft reply for human review
reply_email(
  message_id="msg_01xyz789",
  body="Hi Alex, you can cancel your subscription from Settings > Billing > Cancel Plan. The cancellation takes effect at the end of your current billing period. Let me know if you need help finding it.",
  oversight_mode="gated_send"
)

# Check what's pending approval
list_pending(mailbox_id="[email protected]")

# Approve a draft
decide_email(message_id="msg_01xyz789", decision="approve")

# Tag original thread resolved
tag_email(message_id="msg_01xyz789", tags=["resolved"])