Consent is the foundation of legal email marketing. Without it, your emails risk being flagged as spam, blocked by ISPs, or subject to fines under laws like:
GDPR (Europe)
CAN-SPAM (USA)
CASL (Canada)
PECR (UK)
Privacy Act (Australia)
Not to mention, it’s just a bad/unprofessional look and will turn off prospects and customers.
NOTE: Below are common interpretations of the major compliance laws, but you should always work with your company’s legal expert/team to understand their interpretation of these laws and any local specifications that you also need to consider. The laws are not 100% clear in every circumstance, so there will always be some level of interpretation and risk tolerance decision involved.
✉️ TYPES OF CONSENT
Type
Description
Best Practice
Required By
Explicit Consent
A user actively opts in (ex. checks a box, confirms via double opt-in)
Use for all marketing lists globally
GDPR, CASL, PECR
Implied Consent
Based on an existing relationship (ex. customer purchase or inquiry)
Valid only for transactional or limited-time B2B sends
CAN-SPAM, CASL
Soft Opt-In
Consent assumed for similar products after purchase
Use with clear opt-out & only for related services
PECR (UK)
No Consent Required
For transactional or service emails only (ex. receipts, password resets)
Still avoid promotional content. TO BE CLEAR: NO MARKETING OR SALES CONTENT WHATSOEVER!!!
All laws
✅ WHAT MAKES CONSENT COMPLIANT?
Requirement
What It Means
Best Practice
Informed
People know what they’re signing up for
State clearly what kind of emails they’ll get
Freely Given
No pre-checked boxes or forced opt-ins
Use separate checkboxes, not bundled consent
Specific
Consent is tied to a particular use case
Separate consents for different types of messaging
Unambiguous
Users must take a clear, affirmative action
“Sign up” button, checkbox, or double opt-in email
Documented
You can prove when and how someone opted in
Store opt-in source, timestamp, and method
🧰 COMPLIANCE BEST PRACTICES
Area
Best Practice
Forms & CTAs
Be clear about what people are signing up for. Avoid vague phrases like “Stay in the loop.”
Double Opt-In
Send a confirmation email after sign-up to verify the address and consent.
Privacy Policy
Link to your privacy policy near every sign-up form.
Audit Trails
Store consent logs (timestamp, IP, method, form name).
Easy Opt-Out
Include a working unsubscribe link in every marketing email. No login should be required to opt out.
Preference Centers
Let users manage frequency, topics, or unsubscribe entirely.
B2B Considerations
In the U.S., CAN-SPAM allows cold emails, but you must include company address, opt-out link, and truthful subject lines.
Children’s Data
Obtain verifiable parental consent if targeting users under 16 (or younger depending on jurisdiction).
🧾 FIELDS TO TRACK CONSENT IN YOUR MAP/CRM
To maintain compliance and prove lawful email sending, your MAP (ex. HubSpot, Marketo, Pardot, ActiveCampaign) and CRM (ex. Salesforce, HubSpot CRM, Dynamics) should include the following fields:
Field Name
Description
Best Practice Usage
Consent Status (ex. Email_Consent__c)
High-level status such as “Opted-In”, “Opted-Out”, “Pending Confirmation”
Use this to gate sends — only send marketing to “Opted-In”
Opt-In Date
Timestamp of when consent was given
Store automatically via form fills or confirmation clicks
Opt-In Source
How or where the person gave consent (ex. Web Form, Event, Chatbot)
Useful for audit trails and segmentation
Double Opt-In Status
Whether they completed a double opt-in step
Optional but encouraged for GDPR/CASL compliance
Unsubscribe Reason
Captured via a custom unsubscribe/preference center
Can be used to improve retention or adjust targeting
Preferred Communication Channels
Email, SMS, Phone, Postal
Stored in a multi-select or related object
Communication Preferences
Product updates, newsletters, events, etc.
Used to personalize sends and honor opt-downs
Last Updated By / Date
Who or what system last updated consent fields
Useful for audit logs and syncing issues
Privacy Policy Version Agreed
Optional field to show which version of your policy they consented to
Helps track changes over time
⚙️ HOW TO USE THESE FIELDS FOR COMPLIANCE
Use Case
How to Do It
Suppress non-consenting contacts
Build dynamic suppression lists using Consent Status != Opted-In
Honor communication preferences
Use Communication Preferences to create topic-based campaigns
Support global compliance
Use country field + consent fields to apply regional laws (ex. only send without opt-in if US-based and B2B)
Sync consent between MAP & CRM
Use bi-directional field sync + change logs to prevent accidental overwrites
Prove compliance during audits
Export audit logs with Opt-In Date, Source, and Consent Status
Adjust logic per region
Add workflows to dynamically update consent needs based on country (ex. require double opt-in for EU residents)
Understanding and adhering to email consent laws is crucial for lawful and effective email marketing. Below are the primary regulations governing email consent, along with official resources for each:
🇪🇺 General Data Protection Regulation (GDPR) – European Union
GDPR mandates explicit, informed consent for processing personal data, including email addresses.
Key Requirements:
Obtain clear, affirmative consent before sending marketing emails.
Email Marketing - General Data Protection Regulation (GDPR)
Newsletter mailings and e-mail marketing are a fixed part of the online marketing universe. Basically, the principle that processing is prohibited but subject to the possibility of authorisation also applies to the personal data which is used to send e-mails. Processing is only allowed by the General Data Protection Regulation (GDPR) if either the data … Continue reading Email Marketing
🇺🇸 CAN-SPAM Act – United States
The CAN-SPAM Act sets rules for commercial emails, requiring transparency and honoring opt-out requests.
Key Requirements:
Avoid misleading header information and subject lines.
Identify the message as an advertisement.
Include a valid physical postal address.
Provide a clear opt-out mechanism and honor opt-out requests promptly.
Do you use email in your business? The CAN-SPAM Act, a law that sets the rules for commercial email, establishes requirements for commercial messages, gives recipients the right to have you stop emailing them, and spells out tough penalties for violations.
🇨🇦 Canada's Anti-Spam Legislation (CASL)
CASL requires express or implied consent before sending commercial electronic messages.
Key Requirements:
Obtain consent (express or implied) before sending emails.
Canada’s anti-spam legislation (CASL) protects consumers and businesses from the misuse of digital technology, including spam and other electronic threats. It also aims to help businesses stay competitive in a global, digital marketplace. Learn about the legislation as well as how to protect yourself from spam and how to report it when necessary.
🇬🇧 Privacy and Electronic Communications Regulations (PECR) – United Kingdom
PECR complements GDPR, focusing on electronic communications, including email marketing.
Key Requirements:
Obtain consent before sending marketing emails to individuals.
You must not send marketing emails or texts to individuals without specific consent. There is a limited exception for your own previous customers, often called the ‘soft opt-in’.
If you send marketing emails or messages to customers, you need to know about the Spam Act. The Spam Act sets out your responsibilities under Australian law.
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