One API, every channel

Email sends through Amazon SES by default. Add one or more SMTP servers, order them, and the resolver tries them in turn — falling through only on connection/auth failures, never on a bad mailbox. Choose per account whether un-pinned sends go SES→SMTP, SMTP→SES, or one only. Pin a specific domain to a provider, or override a single send.

A tracking pixel and link rewriting are injected automatically at send. The Analytics page breaks opens and clicks down by device, mail client, and country/city — with a clear note that Apple Mail Privacy Protection inflates open counts industry-wide.

Syntax, MX-record, and disposable-domain checks with cached results. Validate a single address or a whole import in one call, or flip on “validate before send” to reject undeliverable recipients up front and protect your sender reputation.

Restrict each API key to specific IPs or CIDR ranges. Organization accounts keep every tenant’s data isolated, with provider credentials and SMTP passwords encrypted at rest — bring your own SES, Twilio, FCM/APNs, and SMTP.

Every send is queued with automatic retries and backoff, so transient failures recover on their own. Provider webhooks update delivery status live — sent, delivered, bounced.

Manage keys, domains, templates, contacts, and email providers from the dashboard — or integrate with the .NET SDK (net8.0 and netstandard2.0). Templates support {{variables}} with a live preview.