Is cold email legal in Canada? What CASL asks

Is cold email legal in Canada under CASL? See when a published business address counts as consent, with the act's text behind it.

Recipient countries
Try:
Canada: get consent before the first emailUnder Canada's Anti-Spam Legislation (CASL). Opt-in rule.
  • Consent: opt-inConsent before the first email.
    Why

    A commercial electronic message may only be sent if the recipient has consented, expressly or impliedly. Consent is implied when the person has conspicuously published the address without a statement refusing unsolicited commercial messages, and the message is relevant to their business, role, functions or duties in a business or official capacity.

  • B2B exception: partlyOnly in some cases. Read why before you rely on it.
    Why

    There is no general exemption for business recipients, but a business address that was conspicuously published, with no 'no unsolicited messages' statement, gives implied consent for messages relevant to the person's role.

  • Footer needs sender identity, postal address, and unsubscribeRequired by the law.
    Why

    The message must name the sender (and the person on whose behalf it is sent) and give the mailing address plus a phone number, email address or web address, set out clearly and prominently. It must contain an unsubscribe mechanism that can be readily performed, and unsubscribes must take effect within 10 business days.

  • PenaltiesAdministrative monetary penalties of up to CAD 1,000,000 per violation for an individual and CAD 10,000,000 for any other person.
    Why

    Regulator: CRTC (Canadian Radio-television and Telecommunications Commission)

Rule cards: 1 picked of 20 countries

  • CanadaOpt-inB2B exception: partly
    Law
    Canada's Anti-Spam Legislation (CASL), S.C. 2010, c. 23, ss. 6, 10(9), 11, 20(4); Electronic Commerce Protection Regulations (CRTC), SOR/2012-36, ss. 2, 3
    Consent basis

    Opt-in: consent before the first email

    A commercial electronic message may only be sent if the recipient has consented, expressly or impliedly. Consent is implied when the person has conspicuously published the address without a statement refusing unsolicited commercial messages, and the message is relevant to their business, role, functions or duties in a business or official capacity.

    B2B exception

    Partly

    There is no general exemption for business recipients, but a business address that was conspicuously published, with no 'no unsolicited messages' statement, gives implied consent for messages relevant to the person's role.

    Footer checklist
    • Who is sending (sender identity): required
    • The sender's postal address or contact details: required
    • A working unsubscribe: required

    The message must name the sender (and the person on whose behalf it is sent) and give the mailing address plus a phone number, email address or web address, set out clearly and prominently. It must contain an unsubscribe mechanism that can be readily performed, and unsubscribes must take effect within 10 business days.

    Penalties
    Administrative monetary penalties of up to CAD 1,000,000 per violation for an individual and CAD 10,000,000 for any other person.
    Regulator
    CRTC (Canadian Radio-television and Telecommunications Commission)

    Source: laws-lois.justice.gc.ca (opens in a new tab), laws-lois.justice.gc.ca (2) (opens in a new tab), laws-lois.justice.gc.ca (3) (opens in a new tab), laws-lois.justice.gc.ca (4) (opens in a new tab). Checked Nov 9, 2026. Not reviewed by a lawyer. Not legal advice.

Photo of Utku Zihnioglu

By

· CEO & co-founder

Updated Nov 11, 2026

Shorter page: the tool first, the answer in a few lines.

Is cold email legal in Canada? For a first cold email, generally only with consent. Canada's Anti-Spam Legislation (CASL) allows a commercial email when the person agreed to it, and that agreement can be implied, most often because the address was conspicuously published by them or for them.

The tool above opens on the Canada card, with the consent rule, the footer, and the act's own text behind each. This is not legal advice. No lawyer has reviewed the card or this page, so read the source and ask a lawyer about your own case before you rely on it.

The published-address test

Implied consent from a published address needs three things at once. The person published the address, or had it published, conspicuously. Nothing beside it refuses unsolicited messages, and your email is relevant to their business role.

An address guessed from a naming pattern fails the test, because nobody published it. So does an address from a list that cannot show where the person published it: the act asks what the person did with the address, not where you found it.

The rule reads plainly in the text of CASL on the Justice Laws site.

What to do next

Before the first send, note where each Canadian address came from, and keep that page with the day you saw it. Section 13 puts the proof of consent on whoever claims to have it, which is you.

Set aside guessed addresses and any published beside a refusal. Send each person only the offer that fits their job, and write the email so the fit is plain.

Write a footer with your name, your mailing address with one more way to reach you, and a working unsubscribe. For the other countries on your list, see cold email law by country.

Is cold email legal in Canada: common questions

Does CASL apply if my company is outside Canada?

Yes, when a computer system in Canada is used to send or access the email. Section 12 of the act ties the email rule to where the system is, not where the sender is, so a US team emailing someone who reads their mail in Toronto is covered.

Can I send a cold email asking for permission to email someone in Canada?

Not without consent. CASL counts a message that asks for consent to send commercial messages as a commercial message itself, so the request needs the same consent as the pitch it asks about.

Can I email someone in Canada who gave me their business card?

Usually, yes. CASL implies consent when the person gave you the address themselves, on a business card or in an email to you, without saying they do not want such messages, and your email is relevant to their business role.

Are some messages exempt from CASL's consent rule?

Yes, a few. The act and its regulations take some messages out of the consent rule, such as a quote someone asked for, or a message to someone you have a personal or family relationship with. A first cold email is rarely one of them.

About this article

Photo of Utku Zihnioglu

Utku Zihnioglu

CEO & co-founder

Serial entrepreneur who built infrastructure companies handling billions of requests. Now leads engineering at Oneprofile, which finds the people worth talking to, researches each one, and follows up until they reply.

Drafted with AI from our product docs and code. Utku Zihnioglu answers for what it says.

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One-click unsubscribe and a do-not-contact check

In Oneprofile, a contact's reply asking to stop puts them on your do-not-contact list.

Free plan: 200 credits a month, 3 integrations, no card