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How to unsubscribe from emails, which is not a favour

By Alberto Gulotta · Updated 23 September 2026 · 9 min read

Most guidance on how to unsubscribe from emails is about finding the link — scroll to the bottom, look for the grey four-point type. That is the easy part and it is the wrong frame. In the United States, a company sending marketing email is not doing you a courtesy by offering the option; it is meeting a legal requirement, and the requirement is specific.

Read that list as a checklist rather than as background. An unsubscribe process that makes you log in, answer questions, or click through several pages is not a compliant one — the FTC’s wording is a reply email or “a single page”. So is a link that has stopped working three weeks after the email arrived, and so is any version that asks for your name, your reason, or anything beyond the address itself.

The last item is the one worth knowing and almost never repeated: once you have opted out, the sender cannot sell or transfer your address. That is the opposite of the fear the warning below trades on is happening when they click.

There is a second requirement in the same guidance that gives you a way to tell the two apart before deciding. Every marketing message must “include your valid physical postal address”, and must “disclose clearly and conspicuously that your message is an advertisement”. A message with no postal address at the bottom is already outside the rules, and that is a check you can make in two seconds without clicking anything.

One more provision that surprises people who assumed a subscription changed things: the FTC is explicit that “subscribers and members don’t lose their ability to opt out of marketing emails from you simply because they have a subscription or membership.” Being a paying customer does not mean you agreed to the marketing.

And on the question of who is responsible when the email came from an agency rather than the brand: “even if you hire another company to handle your email marketing, you can’t contract away your legal responsibility to comply with the law.” Both the company being advertised and the company that sent it can be on the hook. There is no useful “it was not us” here.

Practically, then, the order to work in is short. Check the message names a real company and carries a postal address. Use its unsubscribe link. Give it ten business days rather than judging it the next morning. If mail keeps arriving after that, the sender is out of compliance and the next step is reporting rather than clicking again.

The other regime gives you a right rather than a courtesy, and a route when the link is missing. The UK regulator tells people to “follow any opt-out instructions within the email”, and then covers the case this page is really about: “if the email doesn’t provide any opt-out instructions, you should look for the organisation’s contact details on their website” — with the tip that a suitable address is usually in the privacy notice. It also warns against replying to mail from a sender you do not recognise, which is the line between unsubscribing and confirming that somebody reads the address.

The guides below take it four ways: doing it, the mail that is not marketing, cleaning up a mailbox that has years of it, and the wider question of where your address keeps coming from.

Not covered here. It will not tell you never to click unsubscribe. For a company you can name, the FTC’s rules make it a right with a deadline — and make selling your address afterwards unlawful.

It will not tell you to click it on unidentifiable mail either. Whoever sent that is already ignoring every requirement on this page.

And it will not recommend a mailbox-cleaning service. Most of them need access to everything in order to solve something smaller than that. What holds instead is simple: the ten-day deadline and the ban on selling addresses after an opt-out are the Federal Trade Commission’s published rules.