Send welcome packs from your online store, and win back abandoned carts
Inactive customers have gone blind to email. Physical post gets past the filter and lands on the kitchen table.
Order now and it lands on the doormat within 2 working days.

A new order deserves more than an order confirmation email. Sending welcome packs from your online store (an unboxing letter, follow-up on an abandoned cart, win-back when email is dead) makes retention viable one copy at a time. Slim Folderen is triggered from your shop, your CRM or Zapier, for consumer online stores and for B2B online stores with regular business customers.
Carts and win-back: what email misses in your online store
Abandoned cart emails get ignored
After three abandoned cart emails, email is dead. A physical card showing the product has no spam filter.
Small segments are too expensive for bulk print
Offset printing doesn't pay off for 50 abandoned carts. Slim Folderen makes one-to-one post from your online store viable.
Unboxing without a letter feels anonymous
A discount code email feels like mass mail. A welcome or unboxing letter with the first order feels like personal attention.
How Slim Folderen works for online stores
Connect your online store, define your triggers and automate.
Define retention triggers
Inactive for 90 days? Abandoned cart? Set it up as a trigger in Zapier or Make.
Design per segment
Upload a letter for each retention segment. Product buyers get different content from loyal customers.
Automate sending
When the trigger conditions are met, Slim Folderen sends the right mailing automatically. No manual work.
Measure the impact
Compare reactivation from the physical mailing against an email-only control group.
Use cases for online stores
Abandoned cart
Still no conversion after three emails? Send a physical card with the product and a discount code.
Welcome pack
Every new customer receives a welcome letter with a thank-you and an incentive. A first impression that sticks.
Renew a subscription or contract
Send business customers a letter 60 days before their subscription or contract ends, with what they ordered over the past year and a concrete renewal proposal.
Win back inactive customers
Reach customers who haven't ordered for months with a physical letter: tangible, personal and impossible to click away.
Related
Marketing teams
Automate direct mail for marketing teams: physical mail via Zapier, Make or webhook, with a campaign budget and a spending limit per employee.
Marketing agencies
Automate direct mail as an agency: campaigns on behalf of clients, white-label mailings and a credit budget per client, with reporting per campaign.
Sales & outbound
Send a brochure from your CRM: an A4 quote or pitch deck by post after a deal trigger. B2B direct mail from one copy, from Pipedrive, HubSpot or LinkedIn.
Integrations
Send from your CRM, Zapier, Make or the API.
Frequently asked questions
How quickly is a brochure delivered?
Orders that come in on a working day before 3 pm are printed the same day. Within the Netherlands, PostNL delivers them to the doormat within 2 working days.
What is the minimum quantity I can order?
A single copy. There is no minimum order. You only pay for what you send.
Can I keep several brochures in my library?
Yes. Upload as many PDFs as you like per product, service or campaign. When something changes, you only replace that file.
Can I use customer data from my online store?
Through a webhook you send the name, address and campaign variables. Only send what is needed for the shipment; we process that data as a data processor, see our privacy statement.
Reach customers who no longer open email
Create a business account and set up your first retention campaign in 15 minutes.
