Email Privacy Laws Explained: GDPR, CAN-SPAM, CASL, and CCPA
What every marketer needs to know to stay compliant in 2025
Email marketing is governed by privacy regulations that vary by region — but impact your entire list. Whether you're sending to users in the US, EU, Canada, or California, understanding the core requirements of these laws helps you stay compliant, build trust, and protect deliverability.
Here’s a plain-language breakdown of the most important email privacy laws you need to know.
1. GDPR (General Data Protection Regulation) – European Union
Applies to: Any organization sending emails to users in the EU or processing EU residents’ data.
Key requirements:
Explicit, informed consent required before sending emails
Must store consent records with time, source, and method
Provide access to user data and allow deletion on request
Must name a Data Protection Officer (DPO) in some cases
Email-specific musts:
Double opt-in recommended
Clear unsubscribe link
Transparent privacy policy accessible from emails
2. CAN-SPAM – United States
Applies to: All commercial emails sent to US-based recipients.
Key requirements:
You can email someone without prior consent, but only under strict conditions
Must clearly identify the email as an ad or commercial message
Must include a valid physical postal address
Must include a working unsubscribe link that functions for 30+ days
Must process opt-out requests within 10 business days
Best practice: Use consent and permission-based models even though not legally required — for brand trust and inbox placement.
3. CASL (Canada’s Anti-Spam Legislation)
Applies to: All emails sent to Canadian residents.
Key requirements:
Express or implied consent required
Clear identification of sender
Include a working unsubscribe mechanism
Must maintain consent records for up to 3 years
High risk of fines: CASL is one of the most strictly enforced anti-spam laws globally.
4. CPRA / CCPA (California Privacy Rights Act)
Applies to: Businesses targeting California residents that meet certain thresholds (revenue, data volume, etc.)
Email relevance:
Users must be able to request data access or deletion
If emails are tied to personally identifiable data (e.g., behavior tracking), you're required to disclose it
Must allow users to opt out of data sale and profiling
Best practice: Treat CCPA/CPRA as a baseline for all US compliance going forward.
How to Stay Compliant Across the Board
Use a privacy-first design system:
Ask for consent clearly, early, and with no ambiguity
Store consent metadata for every subscriber
Provide a well-labeled, frictionless unsubscribe link
Use plain language in privacy disclosures
Avoid hiding email origin, sender identity, or intent
Tools That Help You Stay Compliant
OneTrust, Termly – consent and policy generators
Klaviyo, Mailchimp, ConvertKit – built-in double opt-in and suppression rules
HubSpot, ActiveCampaign – contact history and consent tracking
Final Word
If you're marketing globally, you’re responsible for meeting the highest standards among your audience. Good compliance isn’t just legal hygiene — it’s a competitive edge that boosts deliverability, trust, and long-term loyalty.