SaaS revenue, from the clients you already have.
The technology is the reason the mail lands. The business model is the reason to buy. Every client you already have becomes a subscriber to your platform, billed in your name, paid out to you every month. Past a handful of clients the platform pays for itself, and the retainer stops being the only thing you sell.
Retainers get renegotiated. Subscriptions renew.
An agency sells time, and time does not scale, compound or survive the founder stepping back. A subscription arrives on the first of every month from clients who rarely leave, and it is worth more — to a buyer, to a bank, to the person who owns the agency — than the same money earned by the hour.
The hard part of subscription revenue was never the product. It was finding customers. An agency has already done that: a list of businesses that trust it, pay it monthly and already buy email marketing from someone. SendTo is the platform; you bring the clients; the platform does the operating.
What you sell is a subscription to your own platform. What you keep is the margin on every client, the relationship, the brand, and an agency that is worth more the day you step back from it.
Pick a play. Most partners end up running two.
The pure SaaS play
Clients sign up at your portal, onboard themselves with the sample workspace and walkthroughs, build with the same AI your team uses and pay you monthly. Your involvement is oversight. The margin is almost entirely yours.
- Self-serve signup under your brand
- Support with view-as, never a password
- Best margin, least time
The managed campaigns play
Your team runs every campaign — designed by the platform, finished by your people — and the client pays for the platform and the service together. Retainer clients who want outcomes, not tools.
- Platform fee plus a service fee
- Production time cut by the AI
- The classic agency retainer, with software margin underneath
The hybrid
Strategy and the big seasonal campaigns from you; the routine sends from the client, on your platform, in your brand. The most common shape on SendTo and, for most agencies, the most profitable.
- Two revenue lines per client
- Clients stay because the platform is theirs
- Scales without hiring
The value-added play
The platform as the foundation for everything else you sell: landing pages, list growth, verification, reporting, strategy. Each is a line on the invoice; all of it runs on infrastructure you never have to build.
- Sell verification, pages and growth as services
- One report for everything
- Every service runs on the same platform
Billing runs through the platform, in your name.
Every client is billed by the platform, under your brand. You never chase an invoice. You are paid out every month, and you decide how the platform fee is settled: by card, or taken from your balance before the payout. Past a certain number of clients the fee is covered before you see it — the platform is, in effect, free, and everything after that is income.
Your clients also buy their own usage — sending, verification, AI — at the mark-up you set. That margin sits on top of the subscription.
- Client billing through the platform, in your brand
- Monthly payout to you
- Platform fee by card or from your balance — your choice
Build, send and read the report — all in the platform Harbour & Finch built for you.
Your clients are never at risk because of you.
A client account on SendTo belongs to the client. If the partner falls behind on the platform — or stops being a partner altogether — the client’s account is never deleted and never locked out: their campaigns, lists, domains and reports stay exactly where they are, and mail already in flight is never interrupted. Clients keep their own subscription and usage current in the normal way; what can never happen is a client losing their account over the partner’s bill. That is what makes it safe for a business to move its email onto a platform run by an agency — and what makes it safe for an agency to sell.
- A partner’s arrears never touch a client’s account
- Campaigns, lists, domains and reports persist
- Mail in flight is never interrupted
A handful of clients covers the platform. Then it is margin.
Not a model, an indicator: what you clear on an average client, times the clients you bring across.
How many clients until the platform pays for itself?
Pick what you expect to clear on an average client each month, after usage. Then add clients. Everything past the line is yours.
● cover the platform ● profit
Indicative only. Your prices, your margins, your plans — and no per-client fee, so every client past the line is margin.
What running an email business actually looks like week to week.
Week one: the book moves
Create the client accounts, import the lists, let the domains come online. Send each client an engaged-first campaign. The first reports land in their inboxes with your brand on them.
Week two: the routine
Clients who self-serve build their own campaigns from their presets. Managed clients get theirs from your team — designed by the platform, finished by an account manager. Every campaign is variants, balanced, paced and verified without anyone thinking about it.
Week three: growth
Forms and landing pages grow the lists. Segments send to the engaged first. The reports show human opens rising, and the review meeting is about what to send next.
Week four: the payout
Every client has been billed by the platform in your name. Your payout arrives. The platform fee has come out of your balance, if that is how you chose to settle it. You add the next two clients.
What an agency gives up when it rents.
| Reselling a public tool | Building your own | Partnering with SendTo | |
|---|---|---|---|
| Who the client subscribes to | The tool | You, eventually | You, from day one |
| Who bills the client | You, chasing them | You, building a billing system | The platform, in your brand, paying you out |
| Margin | Whatever the vendor leaves | Whatever survives the payroll | Your price minus one flat overhead |
| Risk to clients | None to them, all to you | Your uptime, your problem | Client accounts never deleted, whatever happens |
| What you own | A discount code | A codebase | A subscriber base under your brand |
We stopped being a reseller and started being a platform. Same customers, same team — completely different business, and a completely different valuation.
Business model questions
How do my clients pay?
Through the platform, in your brand, by card. Every client invoice runs through SendTo billing; you never chase a payment.
How am I paid?
A monthly payout of your margin. You choose whether the platform fee is charged to your card or taken from your balance first.
What if I have a slow month?
Your clients are unaffected — their accounts are never deleted or suspended because of the partner’s subscription. Settle the fee from your balance and carry on.
What do I charge?
Whatever the market you know will pay. Partners run retainers, bundles and platform-plus-projects. Usage is passed on at the mark-up you set.
Can I run more than one play?
Most do. Managed for the retainer clients, self-serve for the rest, value-added services on top.
Turn the client list into a subscriber list.
Launch this afternoon. Onboard your first clients this week. Get paid on the first of the month.
No contract · Cancel any time · Explore everything before you pay