Customer intelligence

OuterSignal

Customer intelligence and enrichment to identify VIPs and personalize outreach.

Klaviyo Tech PartnerKlaviyo 2026 Award Winner

ABOUT OUTERSIGNAL

Customer intelligence and enrichment to identify VIPs and personalize outreach.

Features

Trigger from flows

Fire a postcard send from any Klaviyo flow or campaign event.

Shared segments

Reuse the same customer segments you've already built in Klaviyo.

Mail alongside email & SMS

See mail activity next to your Klaviyo sends, not in a separate tool.

Fast setup

Connect once, about ten minutes, no developer required.

Help desk questions

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Case studies

Real results from brands adding direct mail to their existing stack.