Mail that arrives, and proof that it did.

The records, generated and checked

Add a domain and we generate the exact records to publish — ownership, MX, SPF, DKIM and DMARC — with copy buttons and a check that tells you the moment each one resolves.

• An ownership record, so only you can verify your domain
• One SPF include, merged into the record you already have — never a second SPF record
• A 2048-bit DKIM key for your domain alone — your application never handles one
• A DMARC record at p=quarantine, so mail faking your domain goes to spam
• Domains set up before these records keep working; the new ones are a recommended upgrade

Signed at the server

Outbound mail is DKIM-signed by the mail server itself, so every message leaves signed whether it came from the composer, the API or the SMTP relay.

Bad addresses stop being sent to

A hard bounce or a spam complaint suppresses the address automatically. Reputation is mostly a matter of not repeatedly sending to people who do not want it.

Limits that protect you

Per-plan daily and monthly sending caps are enforced by the API, not displayed on a page. A workspace cannot accidentally burn the shared reputation overnight.