Liberty Mutual runs a separate site just for stopping its mail.
How to stop it
- Go to lmoptout.com.
- Enter your name and full address.
- Submit. Liberty Mutual says it uses this only to find you in its database.
What to expect
- It takes 8 to 12 weeks, because mailings are planned months ahead.
- It covers postal mail only, not calls or email.
- Other insurers’ offers are often prescreened. OptOutPrescreen.com stops those, free.
Source
Liberty Mutual, postal mail opt-out (lmoptout.com). Last checked October 29, 2026.
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Or let us handle it
Mailbox Zero spots senders like Liberty Mutual in your free USPS Informed Delivery preview and asks you once. Say yes and we file the request, then watch your previews through the 12-week window to confirm it stopped.
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