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Bolt.new + Dreamlit

You shipped your Bolt.new app. Users are signing up. Now they need a welcome email, a password reset, an order confirmation. And suddenly you’re staring at SMTP configs, HTML templates, and deliverability settings. Dreamlit keeps you in the same AI-first flow. Describe the email you want, and it builds everything: the trigger, the template, the sending logic. How it works: Dreamlit watches your Supabase database directly. Your app never calls an API.
  • Payment processed → receipt sent
  • User invited → invite email
  • Error logged → team alert
Your Bolt app writes data. Dreamlit sends the email.

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Who this guide is for

  • Bolt.new builders who need transactional email without the setup
  • Vibe coders who want to ship notifications as fast as they ship features
  • Anyone on Bolt.new + Supabase looking for professional, on-brand emails

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Why can’t I just ask Bolt.new to build email?

You could. Prompt Bolt.new to send a welcome email when someone signs up. It’ll wire up Resend or SendGrid. But then:
  1. How do you preview that email with real user data before it goes out?
  2. How do you track who opened it? Who clicked?
  3. What happens when emails bounce?
  4. Are you setting up DKIM and SPF records for deliverability?
  5. What about retry logic when the provider has an outage?
  6. What about scheduled emails? Recurring digests? Drip sequences?
  7. After you’ve built a few workflows, how do you see how they’re all performing in one place?
  8. How do you let non-technical teammates edit email copy without touching code?
Or just use Dreamlit and skip all of that. We handle it end-to-end.

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Prerequisites

  • A Bolt.new app using Supabase for the database
  • 5 minutes

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Does your Bolt.new project use Supabase?

Dreamlit connects to your Supabase database to watch for changes and trigger emails. Here’s how to check if your project is set up correctly.

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Projects created before September 30, 2025

Good news: Supabase was the default database for older Bolt.new projects. Your project likely already has Supabase connected. You can verify by clicking the database icon in your project or going to Project Settings.

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Projects created after September 30, 2025

Newer Bolt.new projects use “Bolt databases” by default. If you chose Supabase during initial setup, you’re good to go. If not, you can claim your Bolt database to get direct Supabase access.

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Connect Dreamlit to your Supabase

1

Create a Dreamlit account

Go to app.dreamlit.ai and sign up.
2

Connect your Supabase project

Click Connect Supabase and authorize the connection. This connects to the same Supabase project your Bolt.new app uses.
Connecting Supabase via OAuth
That’s it. 2 clicks and you’re connected. Dreamlit can now see your database and you’re ready to create workflows.
Need auth emails? (password reset, magic links, email verification) Check out our Supabase Auth Emails guide for one-click setup.

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Example: Welcome email workflow

Let’s walk through creating a welcome email that sends when someone signs up. You can use this pattern for any workflow where you record data in your database.

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Step 1: Create the workflow in Dreamlit

Click Create Workflow and describe what you want:
“Send a welcome email when a new user signs up”
The AI generates everything: the database trigger, email template, and copy.
AI generating a welcome email workflow

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Step 2: Update your Bolt.new app (if needed)

Here’s the key insight: Dreamlit watches your database, not your code. When a new row appears in your users or auth.users table, Dreamlit sends the email automatically.
If you’re using Supabase Auth, users are automatically added to the auth.users table when they sign up. No extra table needed.
If your Bolt.new app already creates user records on signup, you’re done. No code changes needed. If you need to add a field or table for Dreamlit to watch, prompt Bolt:
“When a user signs up, add a row to the user_signups table with their email and name”
Or for something like order confirmations:
“When a user completes checkout, insert a row into the orders table with the order details”

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Step 3: Preview and publish

Preview your email with real data from your database, then click Publish.

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Prompting Bolt.new to work with Dreamlit

Dreamlit triggers emails based on database changes. When prompting Bolt.new, focus on getting data into your database. Dreamlit handles the rest. Good prompts for Bolt.new:
You want…Prompt Bolt.new with…
Welcome emails”Store new signups in a user_signups table”
Order confirmations”Insert order details into orders when checkout completes”
Comment notifications”Save comments to a comments table with the post_id and author”
Activity alerts”Log user actions to an activity table”
You don’t need to prompt Bolt.new about emails at all. Just make sure the data lands in your database, and Dreamlit takes it from there.

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More workflow ideas

Looking for inspiration? Check out our use cases for example prompts across welcome emails, order confirmations, reminders, internal alerts, and more.

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Send from your own domain

By default, emails send from Dreamlit’s domain. To send from your own domain (like [email protected]), you can set up a custom email domain in minutes.
1

Add your domain

Go to Settings → Email Domains and click Add domain. Enter your domain (we recommend a subdomain like mail.yourapp.com).
2

Verify automatically

Dreamlit can automatically configure your DNS records for you. Just click Verify with your DNS provider, sign in to your provider, and authorize the changes.
Automated DNS verification flow
If your DNS provider isn’t supported for automatic setup, you can add the records manually. Dreamlit shows you exactly what to add.
3

Start sending

Once verified, select your domain when creating email workflows. Your emails will now come from your own brand.
This improves deliverability and looks more professional to your users. Full domain setup guide →

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FAQ

You can claim your Bolt database to get direct Supabase access, then connect that to Dreamlit.
A few things to check:
  1. Is your workflow published? Saved workflows don’t run until you click Publish.
  2. Is the trigger table correct? Bolt.new might name tables differently than you expect. Check your Supabase dashboard to see the actual table names.
  3. Is data being written? Check your Supabase dashboard to confirm rows are being created when users take actions.
  4. Try the preview. Use the preview to test with sample data and verify the workflow runs.
Usually no. Dreamlit watches your database for changes, so if your app already writes the data you need, you’re all set. If you need to track something new (like order completions), just prompt Bolt.new to add the database write.
Yes. Dreamlit connects to your Supabase database, not your Bolt.new deployment. Redeploy as often as you like. Your email workflows keep running.
Yes. Dreamlit supports Slack alongside email. Just describe what you want: “Notify our team on Slack when a new order comes in.” Learn more about Slack →
Use the preview feature to send test emails to yourself with real data from your database. Your workflow won’t email actual users until you publish it.
Dreamlit works alongside traditional email providers. Since we take a fundamentally different approach (database-driven, AI-generated workflows), you don’t need to migrate off your existing setup. Try Dreamlit for your next workflow and keep using your current provider for everything else.

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You’re all set

Describe what you want. Dreamlit builds it. Now go ship your next workflow.

Supabase Auth emails

Set up password reset, magic links, and more

Email domain setup

Send from your own domain

Use cases

More workflow examples

Get support

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