CAN-SPAM & Unsubscribe
The CAN-SPAM Act establishes rules for commercial email in the US. EmailSendX handles most requirements automatically, but you need to configure your sending identity and physical address.
CAN-SPAM Requirements
The CAN-SPAM Act requires the following for all commercial emails:
Clear sender identification
Auto / ManualThe From name and email address must accurately identify your business. Do not use misleading or deceptive sender names.
How: Configured in EmailSendX per campaign — From name and From email are set by you.
Non-deceptive subject lines
Auto / ManualThe subject line must not mislead recipients about the content of the email.
How: Your responsibility — set per campaign.
Clear identification as an advertisement
Auto / ManualCommercial emails must be clearly identified as advertising, unless the recipient gave prior consent.
How: Your responsibility — ensure email content is clear about its commercial nature.
Physical postal address
Auto / ManualEvery commercial email must include your current physical postal address (street address, PO Box, or private mailbox).
How: Automatically appended by EmailSendX to every email footer from workspace settings.
Opt-out mechanism
Auto / ManualEvery email must include a clear, easy way to opt out of future emails. You must honor opt-out requests within 10 business days.
How: EmailSendX automatically processes unsubscribes — contacts are suppressed immediately.
Unsubscribe Link
Every campaign must include an unsubscribe mechanism. Use the {{unsubscribe_link}} merge tag in your email template:
<!-- In your email HTML template -->
<p style="font-size: 12px; color: #888888;">
You're receiving this because you subscribed to updates from Acme Corp.
<a href="{{unsubscribe_link}}">Unsubscribe</a> |
<a href="{{preferences_link}}">Manage preferences</a>
</p>When a contact clicks the unsubscribe link:
- EmailSendX immediately sets their status to
unsubscribed. - They are suppressed from all future campaign sends.
- The
email.unsubscribedwebhook event fires if you have webhooks configured. - They see a confirmation page with the option to re-subscribe.
The unsubscribe link is automatically added to footers
{{unsubscribe_link}}, EmailSendX adds an unsubscribe link to the footer automatically before sending. However, it's best practice to include it explicitly in your template design for consistent styling.One-Click Unsubscribe (RFC 8058)
Gmail and Apple Mail (and increasingly other major clients) display a prominent Unsubscribe button in the email interface when an email includes the proper RFC 8058 headers. This is called one-click unsubscribe — clicking it unsubscribes the user without requiring them to click any link in the email body.
EmailSendX automatically adds the required headers to every outgoing email:
# These headers are added automatically by EmailSendX to every campaign send
List-Unsubscribe: <mailto:unsub@emailsendx.com?subject=unsub-abc123>, <https://emailsendx.com/unsub/tok_abc123>
List-Unsubscribe-Post: List-Unsubscribe=One-ClickWhen a recipient uses one-click unsubscribe from Gmail or Apple Mail:
- EmailSendX processes the unsubscribe request in under 1 second.
- The contact's status is set to
unsubscribed. - The
email.unsubscribedwebhook fires withmethod: "one-click".
Google requires one-click unsubscribe for bulk senders
Physical Address
CAN-SPAM requires every commercial email to include your physical postal address. In EmailSendX, configure your address once and it's automatically appended to every email footer:
- Go to Workspace Settings → Compliance → Physical Address.
- Enter your company's physical address (street, city, state/province, ZIP, country).
- Click Save.
The address is rendered in the footer of every campaign sent from this workspace. It appears as:
Acme Corp | 123 Main Street, Suite 100, San Francisco, CA 94102, USA
You received this email because you signed up at acmecorp.com.
Unsubscribe | Manage preferencesPO Boxes and private mailboxes are acceptable
Need GDPR compliance details too?
Read our GDPR guide covering consent tracking, data export, deletion requests, and DPA agreements.