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Lost & found · Finland
Updated September 2026

📬 I keep receiving someone else's mail, or mine goes elsewhere — what do I do?

Direct answer

Mail for someone who does not live at your address: write "not at this address" on it and put it back in the postbox — do not open it, that is a crime. If it keeps coming, tell The carrier's customer service — the postal operator — and ask the registry to investigate who is registered at your address (see that page). Your own mail going astray, opened, or arriving late: complain to the operator first; Traficom — postipalvelut (traficom.fi) — the postal regulator — handles unresolved complaints. Someone reading your mail is also a data-protection issue for Tietosuojavaltuutetun toimisto (029 566 6700).

Call firstThe carrier's customer service
Report toTraficom — postipalvelut
If that failsTietosuojavaltuutetun toimisto

🗣️ What to say

"Since [date] I receive mail addressed to [name] at my address; this person does not live here. Please correct your delivery data. / My own mail addressed to [address] is [not arriving / arriving opened / delivered elsewhere]; [examples with dates]. Please investigate and confirm."

🪜 Step by step

  1. Return, do not open"Not at this address", back in the box. The operator reroutes and, after a few, updates its data.
  2. Tell the operator: The carrier's customer serviceOnline form; ask them to note the correct occupants.
  3. Registry checkIf a stranger is registered at your address, the registry corrects it — that stops most of it.
  4. Your mail missing: complain, then Traficom — postipalvelutOperator complaint with dates and examples; the regulator if unresolved.
  5. Opened mailPhotograph the envelope; report to The carrier's customer service and, if it is a pattern, to the police and Tietosuojavaltuutetun toimisto.

📇 All contacts

The carrier's customer serviceTracking, claims for loss or damage, redeliveryFirst step for anything about the parcel itself
Traficom — postipalvelutPostal regulatorAfter complaining to the courier🔗 www.traficom.fi/fi/viestinta/posti
Tietosuojavaltuutetun toimistoComplaints against companies, supervision, finesWhen the company does not answer within a month or misuses data📞 029 566 6700🔗 tietosuoja.fi
Digi- ja väestötietovirasto (DVV)Change of address, personal identity code, extractsWithin a week of moving📞 0295 536 000🔗 dvv.fi

❓ Frequently asked

Can I throw the mail away?

Better not — return it. Destroying someone's mail can be an offence and the sender needs to know the address is wrong.

Important letters from authorities never reach me

Ask the authority for digital delivery and check your registered address; a wrong registration is the usual cause.

A previous tenant's parcels arrive

Refuse the delivery or return it to the carrier; do not accept and keep them.

📎 Sources

Last checked: 2026-09-26

🔎 Common searches

Recognise your own search? The answer above covers all of these.

  • “receiving someone else mail what to do Finland”
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  • “mail opened by someone report”

🧭 Is this still correct?

We check this information carefully, but phone numbers, websites and rules change — and sometimes we get something wrong. Spotted a mistake or a change? Let us know below.

🔗 Related questions

🚚Parcel not delivered→👥Stranger at my address→🐕Pet missing→🧤Lost property→

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