Whether you send password resets or millions of newsletters, email only works if it lands in the inbox. Black River builds and runs email infrastructure, from a single well-configured mail server to multi-tenant delivery platforms, and fixes deliverability problems that are costing you customers.
What we build
- Delivery platforms – authenticated SMTP relays and REST email APIs, queueing, throttling per mailbox provider and webhooks for every event.
- Mail servers – Postfix-based clusters and mail server setup, dedicated and shared IP pools, automatic IP warm-up.
- Authentication – SPF, DKIM, DMARC and BIMI, done right for every sending domain.
- Reputation management – bounce and feedback-loop processing, suppression lists, blocklist monitoring and alerts.
- Inbound email – routing, parsing and turning incoming mail into actions in your application.