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CAN-SPAM Mailing Address

Why a mailing address is required and how to set it

CAN-SPAM Mailing Address Requirement

The CAN-SPAM Act (and similar laws in other jurisdictions) requires that every commercial email include a valid physical mailing address for the sender. Mailnaptic enforces this requirement to protect both you and your recipients.

Why Is a Mailing Address Required?

Under the CAN-SPAM Act (United States), CASL (Canada), GDPR (European Union), and other email marketing regulations, commercial emails must contain a physical postal address where the sender can be reached. This gives recipients a way to identify who is emailing them and provides regulatory authorities with accountability.

Failure to include a mailing address can result in:

  • Fines and legal penalties.
  • Increased spam complaints from recipients.
  • Reduced deliverability as email providers flag non-compliant senders.

How Mailnaptic Enforces This

When you attempt to send or schedule a campaign, Mailnaptic checks whether the sending domain has a mailing address configured. If the mailing address is empty:

  • The Send button on the campaign builder is disabled.
  • An amber warning banner explains that a mailing address is required.
  • You can still build, design, and preview the campaign — only the final send action is blocked.

Setting Your Mailing Address

  1. Navigate to Domains from the sidebar.
  2. Click on the domain you use for sending campaigns.
  3. In the domain settings, find the Mailing Address field.
  4. Enter your full physical mailing address. This can be:
    • Your business street address.
    • A PO Box.
    • A registered agent's address.
    • A commercial mail receiving agency (CMRA) address, provided you have registered with them.
  5. Save the domain settings.

Once saved, the mailing address is automatically included in the footer of all emails sent from that domain using the {{mailing_address}} merge tag.

Tips

  • If you work from home and prefer not to share your home address, consider using a PO Box or virtual mailbox service.
  • The mailing address is set per domain. If you send from multiple domains, configure the address on each one.
  • Keep your mailing address up to date. If you move or change your registered address, update it in your domain settings promptly.
  • The {{mailing_address}} merge tag is automatically included in the default email footer. If you use a custom footer, ensure you include this tag manually.

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