Documentation and evidence

Documentation

Product documentation

User's guide, sender's guide and the full API reference, including the Mailgun v3, SparkPost v1 and SendGrid v3 compatible endpoints.

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Guides

Email infrastructure guides

SMTP relay configuration for Microsoft 365 and Google Workspace, with the documented limits of each platform stated up front.

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Explainer

Non-Human Interactions (NHI)

What NHI is, where the term came from, what causes it, how common it now is, and how to keep it out of your engagement metrics.

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Writing

Mastering the Inbox

Deliverability, compliance, ESP migration and original research on non-human interaction in email.

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Research report

The State of Email Bots 2026

Four first-party findings on non-human interaction in email, each from a separate Omnivery dataset. 10 pages, no form.

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Certificate

ISO certificates

ISO 9001, ISO/IEC 20000-1, ISO 22301, ISO/IEC 27001, ISO/IEC 27017, ISO/IEC 27018 and ISO/IEC 27701, independently audited.

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Certificate

HIPAA certificate

Published for download rather than supplied on request, so a compliance review can start from the document itself.

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Case studies

Customer case studies

Kiwi.com and beehiiv, with the numbers they agreed to publish. Available as web pages and as PDFs.

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Case study

Kiwi.com

Switched from Mailgun and SendGrid via Bloomreach Engage, and recorded a 17% improvement in unique click rate over twelve months.

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Case study

beehiiv

Bot Detection applied to newsletter engagement data, saving $14.4 million in fraudulent ad spend in six months.

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Inboxing, Security, Compliance

Need a document that is not published here - a DPA, a signed BAA, or a completed security questionnaire? Ask and it gets sent, rather than gated behind a form.