Direct answer: A cease and desist letter works best when the infringement is clear, the seller is identifiable and reachable, and you are prepared to escalate if they ignore it. Send it through a channel that creates a record, state the rights you own with registration details, identify the exact infringing listings or uses, demand specific actions by a specific date, and state the consequences you are actually willing to pursue. Vague threats, wrong facts, or demands beyond your rights undermine credibility and can provoke a declaratory response. For anonymous or repeat counterfeiters, platform enforcement and test buys usually matter more than letters.
The cease and desist letter has a reputation problem: everyone has seen a blustering one that achieved nothing. Drafted precisely and sent at the right target, it is still one of the cheapest effective tools a brand has.
This guide covers when a letter is the right move, what a credible letter contains, and the situations where you should skip the letter and go straight to platform, payment, or legal escalation.
Letters work on identifiable sellers with something to lose: an established storefront, a real business, a reputation in a niche. A letter gives them a private, face saving way to comply before public enforcement, and many legitimate businesses infringing by ignorance or sloppy sourcing do comply quickly.
Letters do little against anonymous counterfeit operations that rotate names and expect takedowns as a cost of business. For those, spend the effort on test buys, platform reports with strong evidence, and payment or logistics disruption. Matching the tool to the target is most of enforcement strategy.
A credible letter identifies your brand and the exact trademark or copyright registrations relied on, points to the specific listings, URLs, or product uses at issue, and explains in one or two factual sentences why they infringe. Precision signals that you have done the work and that a platform or court would see the same facts.
Close with a specific demand and date: remove these listings, stop selling these items, and confirm in writing by a stated day, usually one to two weeks depending on severity. Open ended demands get open ended delays. Keep the tone professional and cold; anger in writing always reads worse later than it felt when sent.
Use a delivery method with a record: tracked email with read confirmation where available, a platform message system that archives, or posted letter with tracking for a business address. Keep the letter, the evidence screenshots with dates, and any reply together in one enforcement file per seller.
That file matters because the letter is often step one of a documented ladder. Platforms, payment processors, and courts all respond better to a pattern you can show: notice given, deadline passed, conduct continued. A letter you cannot prove you sent is a rung missing from the ladder.
Do not send a letter when your own rights paperwork is shaky, the other party use might be legitimate, such as genuine goods resale or nominative fair use, or you are not prepared for the recipient to lawyer up and reply in kind. A weak letter invites a confident refusal that the seller then shows the platform.
Get counsel involved for high value targets, cross border sellers, or anyone who responds with their own legal claims. The first letter can be a business document; the moment the exchange becomes legal argument, it should be run by someone whose job that is.
Related reading: Seller Account Health Metrics: The Numbers That Predict a Suspension, Marketplace Listing Hijack Response: The First 72 Hours Done Right, and Marketplace Test Buys: Turning a Purchase Into Takedown Evidence.
For clear online infringement, seven to fourteen days is a common, defensible window, shorter when sales are active and harm is compounding. State the exact date in the letter. If the seller engages in good faith and asks briefly for more time to clear stock questions, a short documented extension rarely hurts your position.
Not always. A precise letter from the brand on letterhead, with correct registration details, resolves many cases, especially with smaller sellers. Lawyer letters carry more weight for larger targets and contested facts, and they signal escalation readiness. Match the sender to the size and stubbornness of the problem.
Escalate along the path you named: platform infringement reports with the letter attached as evidence of notice, payment processor complaints where applicable, and legal counsel for formal action. Ignoring a clear notice generally worsens the seller position with platforms, which is one reason sending it was worthwhile.
Yes, if the facts or rights are wrong. Accusing a legitimate reseller of counterfeiting, or claiming rights you do not hold, can produce defamation or tortious interference claims and undermines your credibility with platforms. Verify with a test buy and a rights check before the letter goes out.