In most cases the letter is not about a policy of yours. The three commonest reasons are that you are a third party in someone else’s claim, that the insurer now underwrites or administers a policy you bought under a different brand, or that you are on a marketing list. Read the first paragraph for a claim number, a policy number, or a date of loss. Which of those three appears tells you which conversation you are actually in.
Search this question and the top result is a state motor vehicle agency page about insurance lapse notices, followed by attorney marketing pages about demand letters and one spammed university subfolder. None of them answers the question a person is actually asking, which is why a company they have never been a customer of is writing to them at all.
First, the letter may not be from an insurer
Insurance lapse letters, the kind that threaten registration suspension, are usually sent by a state motor vehicle agency, not by an insurance company. They are on the SERP for this query because the wording overlaps, and they are a different situation with a different response. Check the letterhead and return address before assuming which type you are holding. Reading the address apart from the brand is covered in how to read a business return address.
Reason 1: you are the other party in someone else’s claim
This is the single most common genuine explanation. If you were involved in a vehicle collision, a property incident, or an injury where another person carried the insurance, that person’s insurer contacts you directly. The letter typically carries a claim number and a date of loss, and often names an adjuster.
Two related versions exist. A subrogation letter is an insurer seeking recovery from you or your carrier after it has paid its own policyholder. A reservation of rights letter is an insurer stating it is investigating while reserving the possibility of denying coverage. Both are ordinary correspondence in a claims process and both look alarming to someone who has never seen one.
Reason 2: they underwrite or administer a policy you already have
The brand on a policy is frequently not the company carrying the risk. Policies sold through a retailer, an association, a bank, an employer or a managing agency are commonly underwritten by a separate carrier whose name appears only in the fine print. Books of business also transfer: insurers merge, sell portfolios and assume each other’s policies, and a change of administrator generates a mailing.
Practical test: look for a policy or group number in the letter and compare it against the documents for coverage you already hold. If it matches, this is a rename, a transfer or an administrator change rather than a stranger.
Reason 3: it is marketing
Insurance is one of the heaviest direct mail categories in the United States, and the mail is deliberately designed to look like correspondence. Medicare related mail is the most visible example, clustering around the annual enrollment period that runs from 15 October to 7 December each year, and a great deal of it comes from brokers and marketing organizations rather than from the plan itself. Life and final expense mailings work the same way, often targeted by age and address from purchased data.
Marketing mail is generally identifiable by what it lacks. There is no claim number, no policy number, no date of loss, and nothing specific to you beyond your name and address. A general benefit offer with no account specific detail is a marketing piece, whoever printed it.
Reason 4: benefits attached to someone else
Two versions of this reach people who have never held a policy. An insurer may write to a beneficiary or next of kin about a policy taken out by a relative, often years later and sometimes through a state unclaimed property process. And employer, union or association group coverage can generate mail to a spouse or dependent who never signed anything themselves.
Reason 5: lender placed coverage, mistaken identity, and old addresses
Three residual cases account for most of the rest. A mortgage servicer may buy insurance on a property when it believes coverage lapsed, and that policy’s carrier then writes to the borrower. Name and address collisions put mail for a different person in your box. And a previous resident’s insurer keeps mailing to the address on file long after they left. Mail arriving at your address with your name but no other connection to you is worth reading carefully rather than dismissing, since it can also indicate your details are circulating on marketing lists.
How to work out which one you are holding
Read for four specific items before doing anything else, in this order: a claim number with a date of loss, which means someone else’s claim; a policy or group number that matches coverage you hold, which means an administrator or underwriter change; nothing account specific at all, which means marketing; or a decedent’s name, which means a beneficiary matter.
Then confirm the sender independently. Do not use the phone number or web address printed in the letter for the confirming call. Find the company through its own published contact details, a state insurance department’s licensee lookup, or a state business registry. If the return address is a box you cannot place, the identification method is in how to find out who owns a PO Box, and if the address sits in an unfamiliar state, that alone is normal for this industry and is explained in why a company mails you from a state you have no connection to.
What should stop you
Certain requests do not belong in genuine first contact by mail from an insurer. A demand for payment by gift card, wire transfer or cryptocurrency. A request to send a Social Security number, a full bank account number or a copy of an identity document in a prepaid envelope. A deadline measured in hours. An instruction to call one specific number and no other. The Federal Trade Commission documents these pressure patterns, and reports go to reportfraud.ftc.gov. If the letter came through the mail and you believe it is fraudulent, the United States Postal Inspection Service is the reporting channel for mail fraud.
We do not tell readers whether a specific letter is genuine, because that judgment needs facts only the person holding it has. What we can say is which category the letter most likely falls into and what confirms it. Where verification runs out entirely, the decision path is in what to do with a letter from an unknown sender.
FAQ
Why would an insurance company I have never used contact me?
Most often because you are a third party in someone else’s claim, because they underwrite or administer coverage you bought under another brand, or because you are on a marketing list.
Is a letter from an unknown insurer automatically a scam?
No. Third party claim contact and administrator changes are routine. The test is whether the letter contains account specific detail and whether it asks for money or personal information.
What is a reservation of rights letter?
A notice that an insurer is investigating a claim while reserving the possibility of denying coverage. It is a normal step in a claims process, not a verdict.
I got a letter saying my vehicle insurance lapsed. Is that from an insurer?
Usually it is from a state motor vehicle agency rather than from an insurance company. Check the letterhead, since the response is different.
How do I verify an insurer is real?
Use your state insurance department’s licensee lookup and the company’s own published contact details, reached independently. Do not verify a letter using contact information printed in that letter.
Last verified: 7 August 2026. Reviewed every 6 months, since enrollment periods and marketing rules change.
Sources: Medicare open enrollment dates, medicare.gov · Federal Trade Commission: how to avoid a scam · United States Postal Inspection Service reporting · This site’s Editorial Policy and Disclaimer explain how identifications here are sourced and why we do not rule on individual letters.
