Make your domain your own.
Start with domain authentication. Connect the records that help receiving servers recognize your email.
Domain authenticationEmail infrastructure, simplified
Good products.Great emails.One simple API.
Build email into your product with a clear API,
familiar SMTP, and delivery details when you need them.
Your stack.
Your next send.
A straightforward integration that works the way you build — with an HTTP API, SMTP, and clear delivery visibility.
Built for your workflowfetch('https://api.sendlom.com/emails', { method: 'POST', headers: { Authorization: 'Bearer YOUR_API_KEY', 'Content-Type': 'application/json' }, body: JSON.stringify({ from: 'hello@example.com', to: 'alex@example.com', subject: 'Welcome aboard' })});DeliveredExample response
Clarity after send
Every send
has a story.
Follow the message beyond your API call. See what arrived, what needs attention, and what to do next.
Useful delivery events
Connect the request to the result with a message ID.
Clear bounce details
Understand the receiving server’s response in context.
Your workflow, connected
Bring delivery updates into your application with webhooks.
The emails your product lives on
Small messages.
Big moments.
The welcome that starts a relationship. The reset that gets someone back in. The receipt that makes it official.
acme.
Sample transactional emailHELLO FROM ACME
You’re in good company.
Welcome aboard, Alex. Your workspace is ready. Let’s turn your next idea into something great.
Open your workspaceA little less friction. A little more possibility.
The Acme team
The Acme team
Thoughtfully connected
The essentials.
Without the overhead.
An email toolkit that fits around your product, from the first integration to the moment you need to investigate a send.
A clear, focused API.
Add email to the application you’re already building. A straightforward request, an identifiable message.
Explore the email APISMTP. Still right at home.
Keep the tools and libraries you know. Connect an existing SMTP client to your sending workflow.
Connect with SMTPKeep your app in the loop.
Make delivery events part of your application, from successful sends to messages that need attention.
Understand webhooksThe details, in context.
Look at the message, its delivery history, and the server response together. Troubleshooting starts with clarity.
Troubleshoot a sendKeys with a purpose.
Connect your server with an API key. Keep credentials out of your frontend and rotate them when needed.
Work with API keysFrom idea to your first send
Three steps.
One less thing to build.
- 01
Connect your domain
Add your sending domain and authenticate it with the DNS records provided.
Explore this step - 02
Create an API key
Give your application a secure way to send. Keep your key on your server.
Explore this step - 03
Make your first call
Use the API or SMTP. Then follow your message through its delivery events.
Explore this step
A few good questions
A little more
clarity.
What is Sendlom?
Sendlom is an email platform designed for developers. The product brings an email API, SMTP, and delivery visibility into one workflow, so you can build transactional email into your application.
Can I use my existing SMTP library?
That is the intended workflow. Point your SMTP client at the Sendlom connection settings and authenticate with your credentials. See the SMTP guide for an illustrative setup.
Do I need my own sending domain?
For production sending, plan to use a domain you own and complete domain authentication. The interactive website demo uses example addresses and requires no domain setup.
Which languages can I use?
The API uses HTTP, so you can integrate from any language that supports HTTP requests. The developer hub includes Node.js, Python, and cURL examples, alongside SMTP settings.
Can I try the website without sending real email?
Yes. The sending demo simulates the message lifecycle in your browser. It does not create an account, store your details, or send email.
Your next great idea starts here