$ ./welcome --product

Forwards your email to your webhook

UnisoftBox gives you a private email address. Every message sent to it is parsed and POSTed to the URL you choose — headers, body, and attachments — with automatic retries until your endpoint answers.

$ ./how-it-works --verbose

three steps, zero glue

step 01

Claim your inbox

Sign up and we issue a private address like you@unisoftbox.com.

step 02

Send anything

Plain text, HTML, or attachments. We parse it all and fold it into one normalized JSON payload.

step 03

Receive a post

We POST to your webhook URL. Failures retry with backoff until you answer or you tell us to stop.

$ ./payload --schema

your endpoint, called cleanly

// Every message becomes a standard JSON POST with a stable schema. A signature on // each request verifies its origin, and undelivered payloads are retried with // exponential backoff.

~/hooks · zsh
$ POST /hooks/invoices
x-unisoftbox-signature: sha256=...
content-type: application/json

{
  "from": "billing@acme.example",
  "to": "invoices@in.unisoftbox.app",
  "subject": "Invoice #1042",
  "text": "Your invoice for May is due...",
  "received_at": "2026-08-19T23:04:00Z",
  "attachments": 1
}

$ ./specs --all

~1s

median delivery

retries, backoff

json

normalized payload

24/7

always listening

$ ./start

your inbox is waiting

// Create a free address. Point it at your URL. Watch emails arrive as webhooks.

$ create your address