Complete email platform for Lovable apps
Lovable builds your app. Sidemail handles the emails. Design them visually, send via API — transactional messages, newsletters, onboarding sequences, and product updates. All from one platform, integrated in minutes.
Newsletters & product updates
Email automation & drip sequences
Transactional emails
Contact management
No-code email editor
GDPR compliant & EU based
Your app grows. Your email needs grow with it.
Every Lovable app follows the same path. Auth emails are just the beginning.
Launch day
Lovable handles signups, password resets, and magic links. Auth emails work. You're shipping.
First users arrive
You want to welcome them properly — branded emails that match your app, designed visually in a no-code editor, not coded in HTML.
Traction kicks in
Users expect updates. You need newsletters, changelogs, re-engagement emails. Lovable wasn't built for this.
You add Sidemail
Newsletters, automation, contact segments, drip sequences, analytics — all from one platform. Keep Lovable for auth. Use Sidemail for everything else.
Everything Lovable doesn't — in one place
Why Sidemail is the best email platform for Lovable apps
Sidemail is an all-in-one email platform built for SaaS. Transactional emails, newsletters, email automation, contact management, subscribe forms — production-ready in under 30 minutes.
Ship emails in under 30 minutes
Lovable users move fast. Sidemail matches that speed. Sign up, pick a pre-made template or build one with the no-code editor, and start sending via the API. No config headaches.
Design emails visually — no HTML
Drag, drop, done. Pick your brand colors, choose from 500+ Google Fonts, add your logo. Tweak copy and layout anytime — no developer needed. Every email is responsive, dark-mode ready, and tested across all major email clients.
Emails that land in inboxes
DKIM and SPF set up automatically. Bounce handling, suppression lists, and feedback loops built in. You don't think about deliverability — it just works.
Email automation & drip sequences
Onboard new signups with welcome sequences. Nudge trial users before expiration. Re-engage inactive users. Define triggers, add delays — Sidemail handles the rest.Newsletters & product updates
Announce features, share digests, send to paying customers only. Target by groups or filters, with open rate tracking and timezone-based delivery.Contact management built in
Sync user data via API. Unlimited custom properties — plan, last active, signup source. Use them to target newsletters and trigger automations.Pre-made email templates
Welcome, password reset, magic link, payment receipt, failed payment, trial expiring. Import with one click, customize, done.Stripe integration — one click
Import Stripe customer emails instantly. Automate payment-related emails, reduce churn with dunning sequences. No code needed.MCP server for AI workflows
Send and manage emails from VS Code, Claude, or Cursor. Lovable users build with AI — Sidemail extends that workflow to email.
Integration guide
How to integrate Sidemail with your Lovable app
Connecting Sidemail to a Lovable project takes a few minutes. Here's the whole process.
Step 1
Sign up & install the SDK
Sign up, create a project, and install the Sidemail JS SDK. You get a 7-day free trial with all features. No credit card required.
Full-featured from day one
No credit card to start
// Install the Sidemail SDK
// npm install sidemail
const configureSidemail = require("sidemail");
const sidemail = configureSidemail({
apiKey: "your-api-key",
});// Use pre-made templates out of the box:
// Welcome, Password reset, Magic link,
// Payment receipt, Failed payment,
// Trial expiring — and more.
//
// Or design your own visually in
// the no-code email editor.Step 2
Add your sending domain & set up templates
Verify your domain — we guide you through DNS and automatically configure DKIM and SPF. Then import pre-made templates or create your own with the no-code editor.
Automatic DKIM & SPF setup
Pre-made templates for common emails
Dark mode, responsive, tested everywhere
Step 3
Send emails from your Lovable app
Use the Sidemail JS SDK from a Lovable Cloud edge function. Store your API key as a Lovable Cloud secret and send emails whenever your app needs to.
JS SDK — npm install sidemail
Store API key in Lovable Cloud secrets
// Inside a Lovable Cloud edge function
const response = await sidemail.sendEmail({
toAddress: "[email protected]",
fromName: "Your App",
fromAddress: "[email protected]",
templateName: "Welcome email",
templateProps: {
name: "Jane",
loginUrl: "https://yourapp.com/login",
},
});// Sync a contact with custom properties
await sidemail.contacts.create({
emailAddress: "[email protected]",
customProps: {
name: "Jane",
plan: "pro",
signupDate: "2026-04-07",
},
});Step 4
Sync contacts for newsletters & automation
When users sign up, send their data to Sidemail via the Contacts API. Include properties for segmentation — plan, role, signup date, last active. Then send targeted newsletters or trigger automated sequences.
Unlimited custom contact properties
Filter & target by any property
What you actually get with each
Lovable handles auth emails. Sidemail handles everything else.
Lovable's built-in emails
Good for basic auth — limited beyond that
- —6 fixed auth templates (signup, reset, magic link…)
- —Rate limited to 100 emails/hour per workspace
- —Templates are React Email code with inline styles
- —Every template change requires redeployment
- —No newsletters, no marketing emails
- —No contact management or automation
- —No visual editor — changes made through AI prompts
Sidemail
Full email platform — send anything, design visually
- Visual no-code editor — change emails instantly
- Newsletters & product updates
- Drip sequences & automation
- Contact management & segmentation
- Transactional emails with pre-made templates
- Dark mode, 500+ fonts, full brand control
- JS SDK — integrate in minutes
Common questions
Can Lovable send newsletters?
No. Lovable's email feature is limited to transactional messages — authentication emails and app-triggered notifications. For newsletters and product updates, use an email platform like Sidemail.
What is the best email service to use with Lovable?
Sidemail. It covers everything Lovable's built-in emails don't — newsletters, automation, contact management, subscribe forms — with a simple API that integrates with Lovable Cloud edge functions in minutes. All-in-one, starting at $14/month.
Do I need to replace Lovable's emails with Sidemail?
Not necessarily. Keep Lovable's auth emails for login flows and add Sidemail for everything else. Or, if you want full control over every email (including auth), send all emails through Sidemail's API.
Can I use Sidemail from a Lovable Cloud edge function?
Yes. Sidemail is a simple REST API. Store your API key as a Lovable Cloud secret and make HTTP requests from your edge functions. No SDK installation required.
How do I send newsletters from a Lovable app?
Sync your users to Sidemail via the Contacts API. Then use Sidemail's Messenger to compose and send targeted newsletters — filter by contact properties, schedule delivery by timezone, track open rates.
How much does Sidemail cost?
Sidemail starts at $14/month for 1,000 emails with every feature included — transactional, newsletters, automation, contacts, subscribe forms. No hidden fees, no per-feature pricing. All plans include a 7-day free trial.
Does Sidemail support dark mode in emails?
Yes. Sidemail was the first email platform to offer native dark mode support. Every template renders correctly in both light and dark mode across all major email clients.
Is Sidemail GDPR compliant?
Yes. EU-based and fully GDPR compliant. Your data and your users' data are stored securely in the EU.
What kind of support does Sidemail offer?
Real human support from the engineers who built the platform. 5-star rated. Available even on weekends. No ticket queues, no bots — just fast, personal help.
Loved by developers and SaaS teams
Don't just take our word for it — here's what teams building with Sidemail have to say.
Nothing could beat Sidemail
"We were absolutely blown away by how awesome the Sidemail offering has been for us... Nothing could beat Sidemail for simplicity and ease of use."
Nick Glynn
CTO of RapidPay Group
More complete than anything else
"Great service, very easy to use but with many options. More complete service than anything else on the market, with a quick learning curve: a dream for our use."
Julien Boulogne
CEO of TPOP
Try Sidemail with your Lovable app
Start sending newsletters, automated sequences, and transactional emails from your Lovable project. Set up in under 30 minutes. No credit card required.
Start free trial