How to Set Up a Daily Email Digest That Reads Your Inbox For You

You open your inbox to 47 unread emails. Thirty minutes later, you've processed them all and done zero actual work. A daily digest reads your inbox overnight and gives you a 2-minute summary — grouped by priority, with draft replies ready to send.

What a Good Digest Looks Like

Before building anything, here's the end result — the summary you'll see every morning:

Total reading time: 90 seconds. Without the digest, those 47 emails would have taken 25-40 minutes to scan, prioritize, and decide what needs attention.

How It Works

Step 1: Define Your Rules (10 Minutes)

The AI needs to know what matters to you. Copy this template and fill in the blanks:

## Email Digest Rules

PRIORITY SENDERS (always "Needs Reply"):
- [Your boss / key client / investor — list by name or domain]
- [Team members — @yourcompany.com]
- [Anyone I've emailed in the last 7 days]

PRIORITY KEYWORDS (bump to "Needs Reply" if found):
- "urgent", "ASAP", "by end of day", "deadline"
- "payment failed", "payout", "invoice overdue"
- "blocked", "need your decision", "waiting on you"

ALWAYS SKIP:
- Marketing emails (unsubscribe footers)
- Automated notifications from GitHub, Jira, Linear (unless they mention my name)
- Newsletters (unless from: [list your must-read newsletters])
- Anything from noreply@ addresses

DIGEST FORMAT:
- 🔴 Needs Reply Today — 1-2 sentence summary each, what they're asking for
- 🟡 FYI — one line each, only if genuinely useful
- 🗑️ Skipped — count by category, no details

The key insight: "Always skip" is more important than "priority senders." Most inboxes are 70-80% noise. Cutting the noise is where the time savings actually come from.

Step 2: Connect Your Email (15 Minutes)

You have three options depending on your comfort level:

Option A: Gmail + Google Apps Script (free, no code hosting)

The simplest path if you use Gmail. Google Apps Script runs inside your Google account — no server needed, no API keys to manage.

1. Go to script.google.com and create a new project
2. Paste the script below
3. Set a daily trigger (Edit → Triggers → Add → Time-driven → Day timer → 6-7 AM)

function dailyDigest() {
  // Fetch unread emails from the last 24 hours
  var threads = GmailApp.search('is:unread newer_than:1d', 0, 50);
  var emails = [];

  threads.forEach(function(thread) {
    var msg = thread.getMessages()[thread.getMessageCount() - 1];
    emails.push({
      from: msg.getFrom(),
      subject: msg.getSubject(),
      snippet: msg.getPlainBody().substring(0, 500),
      date: msg.getDate()
    });
  });

  if (emails.length === 0) {
    return; // No unread mail — no digest
  }

  // Build the prompt
  var emailList = emails.map(function(e, i) {
    return (i+1) + '. FROM: ' + e.from +
           '\n   SUBJECT: ' + e.subject +
           '\n   PREVIEW: ' + e.snippet + '\n';
  }).join('\n');

  var prompt = 'You are an email digest assistant. ' +
    'Classify each email below and produce a summary.\n\n' +
    'RULES:\n' +
    '[Paste your rules from Step 1 here]\n\n' +
    'EMAILS:\n' + emailList + '\n\n' +
    'OUTPUT FORMAT:\n' +
    '🔴 Needs Reply Today\n• [sender] — [1-2 sentence summary]\n\n' +
    '🟡 FYI\n• [one line each]\n\n' +
    '🗑️ Skipped ([count] emails)\n• [count by category]';

  // Call your AI (example: Anthropic API)
  var response = UrlFetchApp.fetch('https://api.anthropic.com/v1/messages', {
    method: 'post',
    headers: {
      'Content-Type': 'application/json',
      'x-api-key': 'YOUR_API_KEY',        // Store in Script Properties for security
      'anthropic-version': '2023-06-01'
    },
    payload: JSON.stringify({
      model: 'claude-sonnet-4-20250514',
      max_tokens: 1024,
      messages: [{ role: 'user', content: prompt }]
    })
  });

  var result = JSON.parse(response.getContentText());
  var digest = result.content[0].text;

  // Deliver: send as email to yourself (or use a webhook for Slack/Discord)
  GmailApp.sendEmail('[email protected]', '📬 Daily Digest — ' +
    new Date().toLocaleDateString(), digest);
}

Option B: IMAP + Python Script (any email provider)

Works with Outlook, Yahoo, Fastmail, or any provider that supports IMAP. Run on your computer, a VPS, or a Raspberry Pi via cron.

import imaplib, email, anthropic, json
from datetime import datetime, timedelta

# Connect (works with any IMAP provider)
mail = imaplib.IMAP4_SSL("imap.gmail.com")  # or imap.outlook.com, etc.
mail.login("[email protected]", "your-app-password")
mail.select("inbox")

# Fetch unread from last 24h
since = (datetime.now() - timedelta(days=1)).strftime("%d-%b-%Y")
_, msg_ids = mail.search(None, f'(UNSEEN SINCE {since})')

emails = []
for mid in msg_ids[0].split()[:50]:  # Cap at 50 to control cost
    _, data = mail.fetch(mid, "(RFC822)")
    msg = email.message_from_bytes(data[0][1])
    body = ""
    if msg.is_multipart():
        for part in msg.walk():
            if part.get_content_type() == "text/plain":
                body = part.get_payload(decode=True).decode(errors="ignore")[:500]
                break
    else:
        body = msg.get_payload(decode=True).decode(errors="ignore")[:500]

    emails.append(f"FROM: {msg['from']}\nSUBJECT: {msg['subject']}\nPREVIEW: {body}\n")

if not emails:
    exit()

prompt = f"""Classify these emails and produce a daily digest.

[Paste your rules from Step 1 here]

EMAILS:
{"".join(emails)}

Output the digest in this format:
🔴 Needs Reply Today
🟡 FYI
🗑️ Skipped (count by category)"""

client = anthropic.Anthropic()
resp = client.messages.create(
    model="claude-sonnet-4-20250514",
    max_tokens=1024,
    messages=[{"role": "user", "content": prompt}]
)
print(resp.content[0].text)
# Save to file, send via webhook, or pipe to your preferred channel

Cron entry to run daily at 6:30 AM:

30 6 * * * cd ~/email-digest && python3 digest.py >> digest.log 2>&1

Option C: No-Code (Make or Zapier)

If you don't want to touch code at all:

1. Make.com (free tier: 1,000 ops/month) — Gmail trigger → AI module (Claude or GPT) → Slack/Email/Discord output. Takes about 20 minutes to set up with drag-and-drop.
2. Zapier (free tier: 100 tasks/month) — Same flow. "New Email in Gmail" → "Send to AI" → "Post to Slack." Limited on free tier but works for low-volume inboxes.

Step 3: Tune It (5 Minutes After Day 1)

Your first digest will be imperfect. That's expected. After day 1, make these adjustments:

• "Too many FYIs." Your skip rules are too loose. Add more domains to "always skip" — check which FYI items you actually read vs. ignored.
• "It missed an important email." Add that sender to your priority list, or add a keyword they used to your priority keywords.
• "Summaries are too vague." Add to your prompt: "For 🔴 emails, include the specific ask — what they need from me, and by when. Don't just say 'wants to discuss project.'"
• "It flagged a newsletter as priority." Add the sender to "always skip" or exclude domains like @substack.com, @beehiiv.com, @buttondown.email.

Most digests stabilize after 3-4 days of tuning. You're training the rules, not the AI — the AI follows whatever rules you give it.

What This Costs

Security: Read-Only Means Read-Only

The AI reads email snippets — it never has credentials to send, delete, or modify your inbox.

• Gmail: Use a read-only scope (gmail.readonly) for Apps Script or OAuth. The script literally cannot send email on your behalf if you restrict the scope.
• IMAP: Generate an app-specific password with read-only permissions. The script calls mail.search and mail.fetch — never mail.store or mail.delete.
• API key safety: Store your AI API key in environment variables or Google Script Properties — never hardcode it in the script itself.
• Sensitive emails: If your inbox contains truly confidential content (legal, medical, financial), add a rule: "Skip any email from @lawfirm.com, @doctor.com — do not summarize or include in digest."

What This Replaces (and What It Doesn't)

Replaces: The 25-40 minute morning scan through your inbox. The mental load of deciding "is this important?" 47 times. The anxiety of wondering if you missed something urgent overnight.

Doesn't replace: Actually replying to emails. The digest tells you what needs a reply — you still write the reply. (Though you could add draft replies as a next step — that's a separate guide in the Library.)

Start Tomorrow Morning

1. Tonight (10 min): Fill in the rules template from Step 1. Be specific about your priority senders.
2. Tonight (15 min): Set up Option A, B, or C. Schedule it for 30 minutes before your usual wake-up time.
3. Tomorrow morning: Read your first digest. Note what's wrong — too many FYIs? Missing a priority sender?
4. Tomorrow night (5 min): Adjust the rules. Add skips, add priority senders.
5. Day 3-4: Your digest is tuned. You now spend 2 minutes on email instead of 30.