Newsletter Legal Checklist: CAN-SPAM, Privacy Policy, and Platform Risk for Substack and Ghost Creators

Most Newsletter Creators Are One Complaint Away from a Problem

Running a paid newsletter feels like a publishing business. Legally, it's also an email marketing operation — and that distinction carries real consequences. Federal law, state privacy statutes, and FTC disclosure rules apply to your subscriber list whether you have 200 readers or 200,000.

The gap between what most creators know and what the law requires is wide. In 2024, the FTC fined Verkada $2.95 million for CAN-SPAM violations — the largest penalty the agency had ever imposed for such violations — over missing unsubscribe mechanisms, absent physical addresses, and deceptive subject lines. These aren't obscure requirements. They're the baseline.

Unlike posting to Instagram or X, newsletters collect and store subscriber data directly. That relationship creates obligations around consent, disclosure, and data handling that social platforms absorb on your behalf. When you own the list, you own the liability.

CAN-SPAM Act: Compliance Requirements

CAN-SPAM applies to any email whose primary purpose is commercial — meaning it advertises or promotes a product or service. If your newsletter runs a sponsored issue, includes affiliate links, or promotes your own paid tier, it qualifies. The FTC does not exempt editorial content from that determination.

The key is the primary purpose test. The FTC applies a holistic standard: would a reasonable reader conclude the email's primary purpose is commercial? Determining factors include the location of the promotional content, how much space it takes up, and how color, graphics, and type size emphasize it. A sponsor section that dominates the visual layout can tip a newsletter into commercial territory even if the editorial text runs longer.

Once CAN-SPAM applies, eight requirements kick in:

• Accurate sender information — the From, To, and routing headers must be correct and not deceptive.
• Truthful subject lines — no misleading or false subject lines.
• Physical postal address — a current street address, PO box, or private mailbox registered under postal regulations.
• Clear opt-out mechanism — every message must include a visible, working way to unsubscribe.
• 10-day processing rule — you must honor opt-out requests within 10 business days.
• No deceptive routing — email headers and transmission information must not mislead.
• No post-unsubscribe sale — you cannot sell or transfer the address of someone who has opted out.
• Third-party monitoring — if you hire a vendor to send on your behalf, you remain responsible for their compliance.

The most common violations among independent operators are the simplest: no physical address in the footer, a subject line that oversells what's inside, and slow unsubscribe processing. None of these require bad intent — they just require inattention.

The stakes are serious. The FTC's January 2025 inflation adjustment sets the maximum civil penalty at $53,088 per email. That figure applies per message, not per campaign. In 2023, the FTC charged Experian $650,000 for sending marketing emails with no opt-out option — even though Experian characterized the emails as non-marketing communications. The primary purpose test governs, not the sender's label.

Privacy Policy: Required Elements and Legal Triggers

CAN-SPAM covers the mechanics of sending. Privacy law covers what you do with the data you collect — and two regimes can reach you simultaneously depending on who reads your newsletter.

CCPA (California Consumer Privacy Act) applies if you process personal information from 100,000 or more California consumers annually. Hit that threshold and you must disclose what data you collect, why you collect it, how you use it, and whether you sell or share it with third parties. Most mid-size newsletters get there faster than they expect — subscriber email addresses, IP addresses, and purchase history all count as personal information under the statute.

GDPR has no revenue or volume threshold. If even one of your subscribers is based in the EU, the regulation applies to you — regardless of where you operate. Under GDPR, the lawful basis for newsletter marketing is consent, not legitimate interest (the UK's Privacy and Electronic Communications Regulations reinforce this for email specifically). That means pre-checked boxes and implied opt-ins won't hold up. Subscribers must actively initiate consent.

When a European subscriber asks you to delete their data, you have 30 days to comply — and that includes hunting down every instance of their data across your email platform, payment processor, and any third-party tools you've shared it with.

Even if your list is small enough to dodge both CCPA and GDPR today, a privacy policy is still baseline due diligence. You are collecting subscriber data. Documenting what you do with it protects you if a subscriber disputes a data practice, and most email platforms require a posted policy before they'll let you send commercial email. A privacy policy template built for newsletter operators should cover at minimum: data collected, purposes for collection, any third-party sharing, subscriber rights, and a contact address for privacy inquiries.

Platform Agreements: What Substack, Ghost, and Beehiiv Say

Substack

Your content and subscriber list belong to you under Substack's Terms of Service — the platform explicitly states that original content you post "remains yours and is protected by copyright." That said, Substack holds a broad operational license to reproduce, translate, and modify your posts as needed to run the service. Ownership and control are not the same thing.

Migrating paid subscribers is where the friction surfaces. Because Substack payments run through Stripe, moving paid subscriptions means rebuilding those payment relationships from scratch on Stripe — not a simple CSV export. If you delete your account, access ends permanently.

Ghost

Self-hosted Ghost gives you complete data control. There is no platform entity that can suspend or ban your publication. Ghost Pro — the managed hosting option — is a different arrangement: your subscriber data lives on Ghost's servers and Ghost's terms govern it. The distinction matters when you are choosing between convenience and sovereignty.

Beehiiv

Beehiiv's Terms of Use contain language that should give any newsletter operator pause. Upon suspension, Beehiiv states it "is not required to receive, compile, or maintain communications or data of any nature" for you. After cancellation, the same rule applies. In plain terms: if your account is suspended, Beehiiv has no contractual obligation to preserve your subscriber data.

The ad network adds another layer. Beehiiv's Ads and Boosts program places CPM brand ads in your newsletters. The Terms reference the ad network but defer subscriber data flow specifics to separate ordering documents — documents most creators never see before opting in.

FTC Disclosure Requirements for Paid Newsletter Content

The FTC's 2023 revised Endorsement Guides apply directly to newsletter creators. If a sponsor pays you, sends you a free product, or provides any other benefit in exchange for promotion, you have a material connection that must be disclosed. The FTC defines material connections to include monetary payments, free products, early access, and prize opportunities — anything that might affect how your audience weighs your recommendation.

"Clear and conspicuous" is not a suggestion. The FTC's standard requires disclosures to be unavoidable — difficult to miss and easily understood by ordinary readers. That means the disclosure must appear before or at the top of sponsored content, not buried at the bottom of the email or hidden in a footer. A general disclosure on your about page does not satisfy this requirement for individual sponsored issues.

Affiliate links carry their own disclosure trap. Labeling a link "affiliate link" or "commissionable link" may not be enough — many readers don't know what those terms mean in context. The FTC's guidance indicates that "paid link" or an explicit statement that you earn a commission if someone clicks and purchases is clearer and less likely to draw scrutiny.

Protecting Your Newsletter's Intellectual Property

Copyright in your newsletter content exists the moment you write it — no registration required. But registration is what gives you leverage. Only a registered copyright lets you file a federal lawsuit, and only then can you pursue statutory damages of $750 to $150,000 per infringed work without having to prove actual losses. If someone scrapes and republishes your issues, unregistered copyright leaves you largely without teeth.

Your newsletter's name may qualify for trademark protection, and the stakes of skipping registration are higher than most creators assume. Common law trademark rights — the rights you get just by using a name in commerce — are geographically limited. A national competitor can adopt a confusingly similar name and you may have no enforceable claim outside your local market. Federal registration through the USPTO establishes priority nationwide and gives you the foundation to license, enforce, and defend your brand.

Newsletter trademarks typically file under Class 41 (educational or informational services) or Class 35 (marketing or business content), depending on whether your newsletter functions primarily as editorial content or as a business-focused publication. Before registering, run a clearance search — a name that's already registered in your class can block your application entirely. A trademark strategy review catches conflicts before you've built an audience around a name you can't protect.

Subscriber terms of service can also help. If your platform supports clickthrough acceptance of terms — rather than passive "by subscribing you agree" language — those terms can prohibit republication and create a contract claim on top of your copyright claim if someone lifts your content.

Actionable Next Steps

Legal compliance for newsletters isn't a one-time project — it's a short list of concrete steps you can knock out in stages. Start with the ones that carry the highest enforcement risk.

1. Today: Confirm every issue includes a valid physical postal address and a working unsubscribe link. Missing either was a cited violation in FTC CAN-SPAM enforcement actions against real companies.
2. This week: Draft a privacy policy and link it from your newsletter's about page or footer. If you collect email addresses, you need one — regardless of where your subscribers are located.
3. Before your next sponsored issue: Add FTC disclosure language at the top of the issue, not the bottom. Name the sponsor and state that the content is paid or that you receive compensation.
4. If you're building a brand: Search the USPTO trademark database for your newsletter name before you grow the audience further. Conflicts are far cheaper to resolve early.