Rejoiner

Key points

• Category: Agencies: eCommerce retention
• Pricing: Paid
• Best for: Brands looking for an agency partner for Klaviyo-led retention and lifecycle work for DTC and eCommerce brands.
• lifecycle email software + managed agency hybrid
• Based in US

What Rejoiner is

Rejoiner is an ecommerce retention marketing platform combining a self-serve email and SMS automation tool with optional professional services, aimed at cart and browse abandonment recovery, subscriber identification and lifecycle triggers like win-back, VIP, replenishment and subscription messaging. It reports being used by 500+ ecommerce brands and highlights aggregate recovered-sales figures on its site.

Beyond the platform itself, Rejoiner sells add-on Strategy Partner and Creative Partner packages where its team handles account reviews, deliverability monitoring, content strategy, copywriting, design and campaign deployment, effectively letting brands choose between DIY software use or a managed, hands-on retention program run by Rejoiner's staff.

It sits in the agencies: ecommerce retention part of an email stack - klaviyo-led retention, lifecycle and sms teams for dtc brands. In practice it is the right pick when your priority is: brands looking for an agency partner for klaviyo-led retention and lifecycle work for dtc and ecommerce brands.

What it does well

The capabilities teams rely on most are lifecycle email software + managed agency hybrid, based in us. Taken together these cover the day-to-day work in this category, and they are the features worth testing during a trial rather than reading about.

Rejoiner blends a genuine software platform with tiered professional services, so brands can start self-managed and later add strategy or full creative execution without switching platforms.

In real use the strongest points people report are specialist team rather than a generalist marketing shop; hands-on execution: strategy, creative and campaign delivery.

Key features

• lifecycle email software + managed agency hybrid
• Based in US
• Specialist team rather than a generalist marketing shop
• Hands-on execution: strategy, creative and campaign delivery

Pricing tiers

Rejoiner is a paid product. Platform pricing starts near $25/month scaled by contact list size with unlimited sends and no long-term contract; Strategy Partner services start around $1,500/month, and Creative Partner (full management) is custom-quoted.

Pricing pages move often, so confirm the current figures with the vendor before you budget. The number worth modelling is not the licence fee on its own but the cost per delivered email once bounces, suppressed contacts and spam-foldered sends are taken out.

Ideal customer profile

• Best fit: Brands looking for an agency partner for Klaviyo-led retention and lifecycle work for DTC and eCommerce brands.
• Where it sits in the stack: Agencies: eCommerce retention - klaviyo-led retention, lifecycle and sms teams for dtc brands.
• Budget profile: Paid - suited to teams comfortable with this commercial model.
• Probably not for you if: retainer pricing - not a self-serve tool would block your team.

What it connects to

Rejoiner is commonly wired into Shopify, WooCommerce, Magento, BigCommerce, Facebook/Instagram retargeting, SMS carriers, Website behavioral tracking pixels and Custom API/webhooks. Check that the specific objects and events you rely on are covered, not just that a logo appears on the integrations page - shallow connectors are a frequent source of rework.

Where it falls short

No tool in this space is complete on its own. With Rejoiner the trade-offs to plan around are retainer pricing - not a self-serve tool; deliverability and sending reputation usually stay your responsibility. None of these are reasons to avoid it - they are the gaps another layer of your stack needs to fill.

The platform's built-in triggers and templates are less extensive than larger ESPs like Klaviyo, so brands with complex, highly customized segmentation needs may find themselves leaning heavily on the paid services tier to get comparable results.

A useful test before committing: send a real campaign through your intended setup, then check where it actually lands across Gmail, Outlook, Yahoo and your customers' corporate filters. Tooling that looks identical on a feature list often behaves very differently once reputation and authentication are involved.

The essentials

Category

Agencies: eCommerce retention

Pricing model

Paid

Vendor

rejoiner.com

G2 rating

Not listed

Best for

Brands looking for an agency partner for Klaviyo-led retention and lifecycle work for DTC and eCommerce brands.

Works alongside Warmy

Yes - warm-up, placement, DMARC

How it fits a deliverability stack

Deliverability is decided by four things: the reputation of the sending domain and mailbox, the quality of the list, correct SPF, DKIM and DMARC authentication, and proof of where mail actually lands. Rejoiner covers part of that picture. The mistake most teams make is buying four separate products for those four jobs and still having no single place that tells them whether the last campaign reached the inbox.

Warmy runs warm-up, inbox placement testing, email verification and DMARC monitoring as one platform, which is why Rejoiner usually sits alongside it rather than against it: it keeps doing what it is good at, while reputation, placement and authentication are handled in one loop.

Deliverability monitoring is included in the Strategy Partner and higher service tiers rather than as a core self-serve platform feature.