Can I promote affiliate links in email marketing?

Updated October 2026 · How we answer

Short answerYes, you can promote affiliate links in email marketing, but you must comply with anti-spam laws and the terms of your email service provider and affiliate program. Many programs allow it, but some restrict or require disclosure.

Legal and Platform Rules

In the U.S., the CAN-SPAM Act requires that commercial emails include a clear opt-out mechanism and accurate header information. If you're emailing people in the EU, GDPR adds consent requirements. You also need to follow the terms of your email service provider (like Mailchimp or ConvertKit) and the affiliate network (like Amazon Associates or ShareASale).

Some affiliate programs prohibit email promotion entirely, while others allow it only to your own opt-in list. Always check the program's terms before sending. Additionally, the FTC requires you to disclose that you're earning commissions from links in your emails.

Best Practices for Email Affiliate Marketing

Build your own email list first. Sending affiliate links to purchased or scraped lists is illegal and ineffective. Focus on providing value, such as a newsletter with tips, and occasionally include relevant affiliate offers.

Use tracking links to monitor clicks and conversions, and segment your list to send targeted promotions. Avoid sending too many promotional emails; a good rule of thumb is to mix affiliate promotions with helpful content.

  • Get explicit consent before adding someone to your list.
  • Include an unsubscribe link in every email.
  • Disclose your affiliate relationship clearly.
  • Use a reputable email service provider that allows affiliate links.
  • Test different subject lines and send times to improve open rates.

Common mistakes

  • Assuming all affiliate programs allow email promotion; many have strict rules against it.
  • Sending affiliate links without disclosing your commission, which violates FTC guidelines.
  • Using a personal email account to send bulk emails, which can get you flagged as spam.
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