Overview

Massiva Email is a multi-tenant email marketing and delivery platform. Through a single REST API (and a matching client portal) you connect and verify your own sending domains, manage contacts, build reusable templates, and send email four ways: one-time blast campaigns, event-driven automations, transactional messages, and one-time passcodes (OTP). Every send is tracked — delivery, opens, clicks, bounces, complaints — and the resulting events are queryable via the API and pushed to your systems via webhooks.

What you can build with it

  • Transactional email — order confirmations, receipts, password resets and other application-triggered messages, sent with one API call against a stored template.
  • One-time passcodes (OTP) — request a code delivery to a recipient and verify it back through the API, without storing or generating codes yourself.
  • Blast campaigns — one-time sends to a list or a dynamic segment, with scheduling, pause/resume, and per-campaign reporting.
  • Automations — multi-step email sequences that enroll contacts on a trigger and progress them automatically.
  • Contact management — import contacts (CSV/XLSX), organize them into static lists and filter-based segments, extend them with custom fields, and rely on platform-wide suppression (unsubscribes, bounces, complaints are never mailed again).
  • Deliverability from your own domain — guided DNS setup (SPF, DKIM, DMARC and related records), verification, and automatic warmup ramp-up for new domains so your reputation is built safely.
  • Delivery visibility — query per-message status and event history, pull aggregate reports, or subscribe to webhooks for real-time delivery, open, click, bounce, and complaint events.

What it does — and does not — do

Does:

  • Send outbound email (blast, automation, transactional, OTP) from domains you verify.
  • Manage contacts, lists, segments, custom fields, and suppressions.
  • Store and render versioned MJML/HTML templates with variables.
  • Track delivery and engagement, expose them via API queries and webhooks.
  • Enforce per-tenant isolation, quotas, and credit-based billing.
  • Support GDPR obligations: consent metadata on contacts, one-click unsubscribe (RFC 8058) on marketing mail, per-contact erasure and export.

Does not:

  • Receive inbound email. This is a sending platform only — there are no inboxes, no reply parsing, no inbound routing.
  • Send SMS or push notifications. Email is the only channel.
  • Host landing pages or signup forms. You link out to pages you host.
  • A/B testing. Subject/content split testing is not available in the current version.
  • Automate regional compliance content. The platform targets GDPR; it does not auto-insert CAN-SPAM/CASL artifacts such as physical-address footers. Content compliance for your jurisdictions remains your responsibility.

How it works (10,000 ft)

Everything goes through one REST API at https://emails.massiva.com/v1, authenticated with a per-account API key. You register a sending domain and receive the DNS records to publish; once the platform verifies them, the domain can send — with new domains automatically rate-shaped through a warmup schedule to protect deliverability. When you trigger a send (a campaign launch or a transactional call), the message is accepted immediately, queued, rendered from its template, checked against your suppression list and credit balance, and delivered. As the message progresses, its status updates (queued → sending → sent → delivered, or bounced/complained/failed/suppressed), and the corresponding events are available through the messages API and pushed to any webhook endpoints you register.

All responses share a single envelope — { "status", "http_code", "payload", "meta" } — so success, errors, and pagination look the same on every endpoint.

Next step

→ Quickstart — send your first transactional email in about 5 minutes.