Direct mail from the segments you already built in Klaviyo.

Postie plugs into Klaviyo so your lifecycle events and segments can trigger direct mail — the same way they trigger email. Same logic. One more channel.

 

Three steps and then it runs itself.

 

Step 1: Connect Klaviyo to Postie Direct integration, no developers required. Authenticate Klaviyo from your Postie account and your segments become immediately available.

 

Step 2: Pick your trigger criteria Choose a segment or define a trigger: “placed order,” “no purchases in 90 days,” “viewed product 3 times.” Postie builds the audience from live Klaviyo data and keeps it current.

 

Step 3: Launch and measure Mail goes out when the trigger fires. Attribution pairs Klaviyo data with Postie performance reporting — so you can measure direct mail results alongside email in the same reporting layer.

 

What Klaviyo brands run with Postie

 

Six lifecycle programs, powered by Klaviyo data.

1. Abandoned cart follow-up Trigger a mail piece when a cart is abandoned — especially for high-AOV carts where email alone isn’t converting. The mailbox shows up where the inbox doesn’t.
2. Browse and category retargeting Mail customers who showed strong product or category interest but didn’t purchase, using Klaviyo browse events as the trigger. Behavior-driven, not batch-and-blast.
3. Lapsed customer winback Automate winback mail from Klaviyo’s lapsed segments — 30, 60, or 90 days since last purchase. No manual list exports.
4. VIP and loyalty tier perks Trigger mail when a customer hits a loyalty threshold or VIP status change. A physical piece carries more weight than another email for your most valuable customers.
5. Post-purchase cross-sell and replenishment Time replenishment mail based on expected product cycle, or cross-sell from adjacent category purchase data already in Klaviyo.
6. Back-in-stock and seasonal drops Target customers with documented past interest in a product or category — not the full broadcast list.

How to connect.
Three options. Most teams pick one.

 

Direct Klaviyo integration The fastest path. Point-and-click authentication, no dev required. Klaviyo segments sync automatically — suppression and targeting lists stay current without manual exports.

 

Postie pixel via tag manager Drop the pixel into your tag manager to capture site behavior for retargeting campaigns and attribution assist. Works alongside the Klaviyo integration.

 

S3 or SFTP For teams with a data lake or warehouse running alongside Klaviyo. Send audience files on a schedule and Postie picks them up automatically.