Delivery proof, via a verifiable hash chain.
For every send, an audit hash chain entry is recorded — an immutable, independently verifiable evidence chain for audits, customer disputes or internal review. Open verification, no tamper window.
Two things we state only in numbers — delivery rate and support time. Our numbers are independently verifiable.
For every send, an audit hash chain entry is recorded — an immutable, independently verifiable evidence chain for audits, customer disputes or internal review. Open verification, no tamper window.
Our Enterprise customers’ median first-response time is 11 minutes. When you write at midnight, the reply comes — a direct, technical answer from someone who can resolve it.
When monthly uptime falls below what’s committed, the difference comes back to you as a refund. Automatic, to your account, no petition. An additional one-month credit is also granted.
Your past sending records, recipient lists and campaign data export with one click. Access stays open for 12 months even after the contract ends. The format is open standards.
Our uptime, incidents and response times are published on the status page.