Automate direct mail as an agency: campaigns on behalf of your clients
Triggers, workflows and budget management. Slim Folderen adds printed mail to the campaigns you run for clients.
Order now and it lands on the doormat within 2 working days.

Agencies want to automate direct mail on behalf of their clients, with approved PDFs, spend per project and reporting to the client. Slim Folderen connects to Zapier or Make: a lead scores and the mailing goes out. White-label print, with no extra print project to manage. In-house teams with their own Zapier budget are covered on the marketing teams page; this page is about campaigns for clients.
Why agencies don't want to keep client direct mail in stock
No overview of spend per client
Traditional print requires payment up front for each client campaign. Slim Folderen splits credits per project, visible in the client report.
No link with the client's CRM
API, Zapier and Make: physical post in your client's workflow, without you running a second print process.
Hard to report to the client
The dashboard shows shipments per campaign and per client, ready for the monthly report.
How agencies use Slim Folderen on behalf of clients
A library, spend and report for each client, not your own marketing stack.
A library for each client
Upload approved PDFs for each client. Access and credits per client or team member, without campaigns getting mixed up.
Flows on behalf of the client
Zapier or Make: a lead scores in the client's CRM and the mailing goes out. White-label print, with no extra print project.
Spend per project
A credit limit per campaign or client. You stay in control towards the client without approving every single shipment.
Reporting for the client
Numbers sent, credits and timeline per campaign. Export them for the monthly report, not for internal team KPIs.
Use cases for agencies mailing on behalf of clients
Campaign on behalf of the client
A lead scores in the client's CRM and you send the approved mailing. White-label print, visible in your reporting.
Spend per client in credits
Allocate credits per client. No surprise invoice from the printer, just a limit you share in the status update.
Monthly report with shipment numbers
Export per campaign: volume, credits, timeline. Ready for the client deck, not an internal team KPI.
A library for each brand
Each client has its own set of PDFs. Switching clients switches the brochure, not the platform.
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.
Online stores
Send welcome packs automatically from your online store: an unboxing letter, abandoned cart follow-up, win-back and contract renewal. From 1 copy, via a webhook.
Event organisers
Print A4 programme booklets: trade fair brochures and conference booklets from 1 copy, or send them as an invitation by post.
Direct mail for businesses
Send your brochure by post to clients and prospects, on the doormat within 2 working days.
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 add several team members, each with their own budget?
Yes. Add colleagues and set how many credits each person is allowed to spend.
Add physical post to your marketing stack
Create a business account and build direct mail into your workflows.
