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Send communication reliably

Make every important email visible before, during, and after delivery.

Queue outbound messages as stored work, record every attempt, retry eligible deliveries, and retain a sent copy.

See what it changes Technical guide ↗

Outbound mail in a product

Create the messageRender content from current product data

Place it in the outboxKeep pending work as a record

Attempt and rememberSend, record the result, and retry when appropriate

Persist message state, attempt history, and next retry time after the request returns.

01Keep messages recoverablePersist work before depending on the public mail network.

02See what happenedRecord attempts and delivery state for investigation.

03Retry from known stateRetry pending messages from their stored content, recipient, state, and attempt history.

Why it matters

Track each message from queued work through delivery attempts, provider responses, and final state.

A provider can time out after accepting a message. Persist the message before delivery and retry eligible attempts according to the queue policy. Store delivery state and attempt history so operators can choose the correct retry and customer response.

Daptin can write outbound messages to an outbox, process pending work through a scheduled action, record attempts, and calculate later retries. In clustered operation, shared claims reduce duplicate processing.

A successful sender path can also add the message to Sent. Show operators message state, attempt history, provider responses, and idempotency context for public mail delivery.

Persist before sending

Keep the message and intended delivery as application state.

Investigate real attempts

Store provider responses, attempt timestamps, recipient context, and next retry state with each message.

Retry eligible outbound messages from persisted queue state.

Retry pending work on a schedule with duplicate-reduction controls.

Follow every recipient

See a personal message travel from business information to delivery.

A single send can create several independent deliveries, each with its own successful result or next attempt.

Diagram showing business information filling a personal email, one delivery per recipient, and separate delivered or retry results. — **Send personal email and track every delivery**Fill a ready-made message with customer or order details, use the owned sender address, and retain progress for every recipient.Open diagram for full-size view

How it fits

Part of one connected backend.

Outbound mail does more when it can reuse the records, people, access rules, and workflows already in your application.

Step 1Compose

Build the message directly or from a template.

Step 2Queue

Store it in the outbox with its mail-server relationship.

Step 3Attempt

A scheduled processor claims and sends eligible work.

Step 4Record

Record delivered state or store the provider response and next retry time.

What it enables

Use it in products people recognize.

Start from the experience you want to create; the backend capability supports the work behind it.

Account notification

Send confirmation or recovery mail with visible delivery work.

Customer update

Queue status changes or reports produced by an action.

Operational alert

Create a message from application state and retain attempt evidence.

Connected by design

Show message state, attempt history, next retry time, and delivery context to operators.

These capabilities share the same application context, so each one makes outbound mail more useful.

Know the boundary

What Daptin leaves in your hands.

Design idempotent product messages and record every public mail delivery attempt. Teams define idempotency, retry, bounce, suppression, reputation, and customer communication policy.

Understand the operating responsibility →

Build from one foundation

Put every outbound message in a stored queue with attempt history and the next delivery time.

Run Daptin locally, explore the live administration surface, and follow one complete application path.

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