Free global email law guide for unsolicited marketing emails.

Location of Email Recipient Law What's Regulated? Recipient Consent Required? Opt-Out Mechanism Required? Technical Requirements
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Canada
CASL
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Unsolicited commercial and marketing email messages Yes
Recipient must have consented to receiving the commercial or marketing email message,
whether the consent is express or implied.
Yes
Commercial and marketing emails must set out an unsubscribe mechanism that lets a recipient unsubscribe via replying to the email or through a link to a website
Email must: (a) set out prescribed information that identifies the person who sent the message and the person — if different — on whose behalf it is sent and
(b) set out information enabling the person to whom the message is sent to readily contact one of the persons referred to in point (a)
European Union
GDPR
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Unsolicited commercial and marketing email messages Yes
Recipient must have consented to receiving the commercial or marketing email message,
with freely given, specific, informed and unambiguous opt-in to be able to send a commercial or marketing email message
Yes
Must provide an easy way for the recipient to opt-out of the commercial or marketing email message
(Each member state may have specific requirements)
United Kingdom
PECR
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Unsolicited commercial and marketing email messages Yes
Commercial and marketing emails to individuals require specific consent to send to individuals or the individuals are an existing customer who bought (or negotiated to buy) a similar product or service from you in the past,
and you gave them a simple way to opt out both when you first collected their details and in every message you have sent
Yes
Commercial and marketing emails must provide a valid contact address so a recipient can opt out or unsubscribe
Email Requires:
(a) the identity of the person on whose behalf the communication has been sent cannot be disguised or concealed
(b) a valid address to which the recipient of the communication may send a request that such communications cease must be provided;
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United States
CAN-SPAM Act
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Unsolicited commercial and marketing email messages No
Unsolicited commercial and marketing emails allowed.
Recipients can be sent commercial messages without prior consent, but must be able to opt out easily
Yes
Unsolicited commercial and marketing emails must notify the recipient of their right to opt-out
(with an unsubscribe link or instructions about a return email address to contact about unsubscribing)
Email Header Requirements: Must be complete and accurate to identify the sender of the message; Must be accurate in the "From" and "To" and "Reply to" lines
Email Subject Line Requirements: Must not be deceptive or mislead a recipient
Email Body Text Requirements: Emails cannot contain false or misleading information; Emails must correctly identify the person initiating the message, provide the sender's valid physical postal address (a post office box you’ve registered with the U.S. Postal Service allowed), clearly identify that it is an advertisement or solicitation