White label email marketing your agency can resell.

HarborCRM lets you run newsletters and welcome sequences for every client from their own verified domain — with isolated lists, built-in compliance, and one agency plan that covers them all.

See how it works
One agency account · Three client brands
Northwind Studiomail.northwindstudio.com · 4,210 subscribers
Acme Coffeenews.acmecoffee.com · 1,870 subscribers
Fern & Foragehello.fernandforage.com · 960 subscribers

Every send comes from the client's domain. Lists never mix.

Email marketing built to be resold.

Most email tools treat agencies as an afterthought. HarborCRM starts from one brand per workspace, so white labeling isn't a setting — it's the architecture.

Every client sends from their own domain

Connect each client's sending domain in minutes — HarborCRM shows the exact DNS records and verifies them automatically. Newsletters arrive from your client's brand, never from HarborCRM and never from a shared agency domain.

Client lists never mix

Each client gets an isolated workspace with its own contacts, segments, campaigns and reports. Unsubscribes and spam complaints are suppressed per client, so one client's list hygiene never affects another's.

A product you can resell

Offer newsletters and welcome sequences as part of your retainer. One agency plan covers every client workspace — no per-client seats, no per-send fees to pass through, no reseller agreement.

Deliverability and compliance built in

Double opt-in, consent timestamps, one-click unsubscribe, postal address on every send, and automatic bounce and complaint handling. The unglamorous parts of email marketing are done for you, per client.

Reports your clients understand

Opens, clicks, list growth and per-campaign reporting live inside each client's workspace. Export a CSV for your monthly report, or give the client a viewer seat so they can look without touching anything.

Welcome automations included

Linear welcome sequences send from the client's domain, track engagement per step, and stop automatically when someone unsubscribes — a premium service you can bill for, not a tool you have to stitch together.

Sending for your first client today.

No reseller agreement, no per-client onboarding project.

1. Add a workspace per client

Create a workspace for each client brand in seconds. Contacts, lists, campaigns and suppression are isolated automatically.

2. Verify their sending domain

Add the client's domain in Settings → Sending & compliance. HarborCRM hands you the DNS records and confirms when they're live.

3. Send and report under their brand

Import contacts, build segments, send campaigns and welcome sequences — all from the client's domain, all reported inside their workspace.

Questions

What is white label email marketing?

Email marketing software you run on behalf of clients under their own brand. In HarborCRM, each client sends from their own verified domain with their own lists and reports, so subscribers only ever see your client's name — the platform behind it is invisible.

Do my clients see HarborCRM's branding?

No. Emails arrive from the client's own domain, and the unsubscribe and signup pages carry the client's name and address. If you give a client access to their workspace, they see a clean, neutral interface.

How is this different from Mailchimp or Klaviyo for agencies?

HarborCRM is built around one brand per workspace with hard data isolation, and one agency plan covers every client. There's no per-client subscription to manage and no agency tier to negotiate — you pay once and resell the service as part of your retainer.

What does it cost to run email for many clients?

The Agency plan covers up to 30 client workspaces and 50,000 contacts for one monthly price. Your clients don't need their own subscriptions. Every account starts with a 14-day free trial, no card required.

Can clients have their own login?

Yes. Invite a client as a Viewer on their own workspace — they can see campaigns, reports and list growth but can't change or export anything. They can never see another client's workspace.

See it with your own clients in mind.

Book a short walkthrough — we'll show you domains, isolation and reporting for an agency your size.

Your clients' brands. Your service. One plan.

14-day free trial. No credit card. One plan covers all your clients.