All solutions / Transactional email
APP DEVELOPERS

Your app has something to say.

Welcome messages, account notifications and password resets. Put email inside your application workflow.

1,000 free emails / month · No card required
inboxit.wtf / workspace
Preview
Workspace / Messages

Messages

Every message. In the right place.

Your applicationExample inbox
A
Your apphello@yourbrand.example
Just now

Welcome to your next big thing.

Your account is ready. Open your workspace and make yourself at home.

Example message
Your conversation continues here

From event to email.

Welcome messages, receipts and resets. Keep every send connected to your application.

01Create
02Send
03Track
ILLUSTRATIVE WORKSPACE
Welcome to your workspaceYour application
Your receipt is readyYour workspace
Reset your passwordYour workflow

Make it yours.

Send your own HTML from a verified domain.

Explore the setup
See the workflow, step by step
  1. Create an inbox for your application.
  2. Send a plain-text message with a scoped API key.
  3. Track delivery and retrieve incoming replies.

Use an idempotency key so retrying a request does not send the same email twice.

A PRACTICAL STARTING POINT

From an application event to a useful email

Transactional email helps someone complete an action they already started. A welcome message, password reset or receipt should explain what happened, what happens next and where to get help. InboxIt supplies sending and receiving infrastructure; your application owns the event, recipient and message.

Account journeys

Send a welcome after account creation, a confirmation after an important change, or a password-reset link after a user requests it. Generate and validate security tokens in your application.

Receipts and confirmations

Send a receipt only after your payment system confirms the transaction. Use a stable event identifier to avoid duplicate emails when the same payment event is retried.

Replies that go somewhere

Use an active receiving address as your reply destination. A sending domain and a receiving inbox are separate pieces of setup; test both before relying on customer replies.

IMPLEMENTATION CHECKLIST

Build your first working flow

  1. Verify your sending domain and publish the DNS records shown in Settings.
  2. Keep a scoped API key on your server, then send text or HTML through the API, or configure SMTP.
  3. Use a stable idempotency key for each logical email and handle transient failures with bounded retries.
  4. Send to an address you control, inspect delivery history, and reply to confirm the return path.

Frequently asked questions

Can I use my own email design?

Yes. Send your own HTML and text with your verified sender identity. Keep a text alternative and test rendering in the email clients your customers use.

Where should my API key live?

On your server or in a protected runtime secret. Never put a sending key into browser JavaScript or a public repository.

Does InboxIt create password-reset tokens?

No. Your authentication system creates the token and enforces expiry and single use. InboxIt transports the email.

What is included on the Free plan?

Start with 1,000 outbound emails and a separate 1,000 incoming emails per calendar month. Daily sending, storage and retention limits apply. See pricing and limits for the full allowance.

More ways to use InboxIt

Cold email

Sending and receiving for your outreach engine, with paced delivery and workspace opt-outs.

Explore solution

Customer replies

Give incoming customer messages a place to land, and let your application retrieve the conversation.

Explore solution

Email testing

Run signup, verification and password-reset scenarios without putting test messages in someone’s personal inbox.

Explore solution

AI agents

Let an agent retrieve emails, read verification messages and continue its workflow through the API.

Explore solution

Product notifications

Connect events in your product to useful emails: an account update, a completed task or a next step.

Explore solution

Your next big thing.
Ready for its first email?

Your domain. Your design. Send emails and receive replies with InboxIt.

Start free1,000 emails / month · No card requiredStart sending after confirming your email. No manual approval required.