The delivery engine that makes OPTIN Growth work. Purpose-built for B2B newsletter cadence — not repurposed from generic ESP infrastructure.
OPTIN IaaS is the managed email infrastructure beneath every send we make. It replaces generic ESPs like Brevo, Mailgun, and SendGrid with infrastructure that was designed from the ground up for B2B newsletter cadence.
Generic ESPs are built for volume. OPTIN IaaS is built for inbox precision — where who gets the email matters as much as whether it arrives.
This is the layer that gives our Growth methodology its teeth. Selective Distribution doesn't work without infrastructure that can execute it cleanly.
Multi-client sending requires infrastructure that isolates reputation by client, handles varied cadences cleanly, and doesn't let one bad sender affect the others.
When your newsletter is your business, you can't afford deliverability gaps. IaaS provides the backbone that treats email as a core operational system — not an afterthought.
Companies using newsletters as a pipeline and retention channel need enterprise-grade reliability without hiring an internal email engineering team to achieve it.
OPTIN IaaS doesn't just deliver emails. It executes the Selective Distribution methodology — routing sends based on engagement signals so your reputation stays clean and your audience stays qualified.
This is not "set it and forget it" infrastructure. Every layer is actively managed by deliverability specialists.
Done-for-you audience growth. We build and scale your subscriber base from end to end.
The underlying email infrastructure powering every send, reputation, and deliverability system.
Turn your newsletter into a relationship engine for your most strategic business outcomes.
AI-generated, publish-ready newsletters that keep your audience engaged week after week.
OPTIN Infrastructure is specifically designed for Selective Distribution™. One infrastructure layer, actively managed, purpose-built for B2B newsletter cadence.