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

# When to Add an Unsubscribe Link

> Legal compliance rules for marketing vs transactional emails.

Under CAN-SPAM, GDPR, and sender policies enforced by Google and Yahoo:

* **Marketing & Promotional Emails**: Must include a clear, working unsubscribe link in the footer and RFC 8058 one-click headers. Mailofly automatically includes these on all Campaigns.
* **Transactional Emails**: Password resets, account activation, receipts, and security alerts do **not** require an unsubscribe link, as recipients need these messages to use the product.


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