The emails you send to users are often the difference between a customer who stays and one who churns. Here are the templates that work for every common situation.
Most SaaS founders underinvest in email communication with their users. The onboarding sequence is cobbled together, the price increase announcement doesn't go out until the last minute, and the bug apology sounds corporate. Here are the templates that work — direct, human, and specific to the solo-founder context.
Subject: You're in — here's how to get started with [Product] Hi [First name], Welcome. You just signed up for [Product] — [one-sentence description of what the product does]. The one thing most new users do first is [specific action that leads to the activation moment]. I'd start there. If you get stuck or have a question, reply to this email. I read every one. [Your name] Founder, [Product]
Keep it short. One action. One invitation to reply. The founder signature is not vanity — it signals that a real person is on the other end, which meaningfully increases reply rates and reduces churn.
Subject: [Product] pricing is changing — here's what it means for you Hi [First name], I'm writing to let you know that [Product]'s pricing is changing on [date]. The new price for [plan] will be [new price]/month, up from [old price]/month. You are not affected. As a current customer, your rate stays at [old price]/month for as long as you remain subscribed. This is a permanent grandfather — not a temporary lock. New customers who join after [date] will pay the new price. Why the change: [one honest sentence — the product has grown, costs have increased, the value has increased]. If you have any questions, reply here. [Your name]
Three things this email does correctly: it leads with the news, it immediately clarifies that existing customers are protected, and it gives a real reason. The tone is direct and human — not corporate.
Subject: Your [Product] subscription has been cancelled Hi [First name], Your subscription has been cancelled as requested. You have access until [date]. I'm sorry it didn't work out. One question, if you have a moment: what was the main reason you decided to cancel? I read every response and it genuinely helps me build a better product. If you ever want to come back, your account will be here. [Your name]
Do not grovel. Do not offer a discount immediately — it signals that your pricing is arbitrary. Ask one question. The answers from churned customers are the most valuable feedback you'll receive.
Subject: Things have changed at [Product] Hi [First name], You cancelled [Product] [timeframe] ago. I wanted to reach out because we've made some changes since then that might be relevant to you. [Specific thing that's changed — feature, price, reliability improvement]. If the timing is better now, you can restart your subscription here: [link]. Same plan, same price you had before. No pressure. Just wanted to make sure you knew. [Your name]
Send this 60–90 days after cancellation. Reference a specific real change. The "same price you had before" line is optional but powerful — it removes the pricing objection without a discount.
Subject: [Product] was down earlier — here's what happened Hi [First name], Between [time] and [time] today, [Product] was unavailable / [specific feature] wasn't working. What happened: [plain language explanation — no jargon]. We've fixed it. What we're doing to prevent it: [one specific thing]. I'm sorry for the disruption. If this affected something time-sensitive for you, reply and let me know — I want to make it right. [Your name]
Plain language. No corporate hedging. One specific preventive action. The offer to make it right is open-ended on purpose — let the customer tell you what they need.
Subject: What's new in [Product] — [Month] Hi [First name], Here's what changed this month: [Feature or fix]: [one sentence on what it does and why you built it] [Feature or fix]: [one sentence] [Feature or fix]: [one sentence] The biggest one is [feature]. We added it because [specific customer feedback that drove it]. What's coming next: [one thing]. Let me know if that's useful for you. [Your name]
Monthly cadence is correct for most micro SaaS products. The "we added it because" line is the most important one — it shows you listen, which is a retention mechanism in itself.
Subject: Quick question about [Product] Hi [First name], You've been using [Product] for [timeframe]. I have one question: What's the one thing you wish [Product] did that it doesn't do yet? Reply here — I read every response and prioritise based on what I hear. [Your name]
One question only. Reply-to the founder. No survey link — surveys have a 5% response rate; personal emails from the founder have 20–40%.
One message per email. Every email above has one point. Emails with multiple asks or multiple pieces of news have lower response rates and lower action rates. Say one thing clearly.
Founder signature. Every email is signed by a person with a name, not by "the [Product] team." A real person is more trustworthy than a brand, especially at the scale of a solo-founder product.
Invite a reply. Every email ends with an implicit or explicit invitation to respond. Customers who reply are customers who are engaged. Engaged customers don't churn.
Tell Marcus where you are in your product and what emails you're sending. You'll get specific recommendations in session one.
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