> ## Documentation Index
> Fetch the complete documentation index at: https://documentation.mysmtp.com/llms.txt
> Use this file to discover all available pages before exploring further.

# CAN-SPAM & Email Compliance

> Understand the CAN-SPAM Act requirements and best practices for legal email sending, including opt-out rules and international regulations.

When sending marketing or transactional emails, it is crucial to follow legal frameworks that protect recipients from unwanted or deceptive messages. In the U.S., the **CAN-SPAM Act** sets the baseline for email compliance. Understanding and following these rules helps you avoid penalties, maintain good sender reputation, and build trust with your audience.

## What is the CAN-SPAM Act?

The **CAN-SPAM Act** (Controlling the Assault of Non-Solicited Pornography And Marketing) is a U.S. law passed in 2003 that sets rules for commercial email, establishes requirements for senders, and gives recipients the right to stop receiving emails.

It applies to **any commercial email**—not just bulk emails. That includes promotions, newsletters, offers, and any email with a marketing component.

## Key CAN-SPAM Requirements

To stay compliant, make sure your emails meet the following standards:

### 1. Do Not Use False or Misleading Header Information

* The "From," "To," and "Reply-To" fields must accurately identify the sender and domain.
* Do not impersonate another individual or business.

### 2. Do Not Use Deceptive Subject Lines

* Subject lines must reflect the actual content of the message.
* Avoid bait-and-switch tactics.

### 3. Identify the Message as an Advertisement

* Clearly and conspicuously disclose that the message is an ad or promotional.
* Exceptions: If the recipient has opted in or if the message is transactional.

### 4. Include a Valid Physical Postal Address

* Every message must contain a real, physical address (e.g., office or PO box).

### 5. Provide a Clear Way to Opt-Out

* Include an **unsubscribe link or mechanism** that is easy to find and use.
* Honor opt-out requests within **10 business days**.
* You cannot charge a fee or require unnecessary steps to unsubscribe.

### 6. Monitor What Others Do on Your Behalf

* If you hire a third-party service to send emails, **you are still responsible** for compliance.
* Vet your email providers and partners.

## Best Practices Beyond CAN-SPAM

While CAN-SPAM sets the legal minimum, inbox providers like Gmail and Outlook also use reputation-based filtering. To improve deliverability and respect your audience:

* Use **confirmed opt-in (double opt-in)** when collecting emails.
* Keep a clean and up-to-date list (remove hard bounces and disengaged users).
* Respect local laws (e.g., **GDPR**, **CASL**) if sending internationally.
* Avoid spammy formatting (ALL CAPS, too many links, misleading offers).

## What About Other Countries?

CAN-SPAM only covers the U.S. Other countries have their own email laws:

| Country | Law | Key Feature |
| - | - | - |
| Canada | CASL | Requires express opt-in (consent) |
| EU | GDPR + ePrivacy | Strict rules around data collection and consent |
| Australia | Spam Act | Requires consent and opt-out option |

## Quick Compliance Checklist

* Accurate sender info
* Honest subject line
* Clear ad disclosure (if needed)
* Physical address included
* Easy unsubscribe link
* Opt-outs processed promptly
* You are monitoring third-party senders


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