Unsubscribes & suppression

How unsubscribe works

When a campaign is sent with the unsubscribe toggle ON, RAPID SMTP injects two things:
- A signed unsubscribe URL into your footer where you placed {{unsubscribe_url}}.
- An RFC 8058 List-Unsubscribe and List-Unsubscribe-Post header so Gmail and Outlook show the native unsubscribe button.
When the recipient clicks unsubscribe, they land on a small confirmation page at smtp.rapidhostbd.com/unsubscribe.
The email and campaign are recorded in Dashboard → Unsubscribes.
The address is added to your suppression list. Future campaigns skip it automatically.

Turning it off

In Send → Unsubscribe settings, toggle Include unsubscribe footer off. When off:

The {{unsubscribe_url}} placeholder is removed (not left as raw text).
The List-Unsubscribe header is not added.

Note: for bulk marketing email to Gmail/Yahoo, one-click unsubscribe is required by their bulk-sender rules. Disabling it is fine for transactional email but risky for marketing.

Customising the footer

The default footer is a one-line note with the unsubscribe link. You can rewrite it freely — just include {{unsubscribe_url}} somewhere. Example:

You're receiving this because you signed up at example.com.
Don't want these emails? Unsubscribe here: {{unsubscribe_url}}

The Unsubscribes dashboard

Every unsubscribe event shows up at Dashboard → Unsubscribes with:

Email address, campaign name, timestamp.
Remove contact — deletes the address from your contacts entirely.
Clear record — keeps the contact but removes the unsubscribe event (re-allows sending).
Bulk select — apply either action, or Export selected as CSV.

Suppression list (automatic)

The suppression list is the source of truth for "do not send". It is populated by:

User unsubscribes (manual or one-click).
Hard bounces (5xx SMTP responses).
Spam complaints (where the provider reports them back).
Manual additions via Suppression → Add.

Any campaign you send first filters out every recipient on the suppression list. Skipped recipients appear in campaign counters as skipped, never as sent.

Compliance notes

CAN-SPAM: unsubscribe must work within 10 business days. RAPID SMTP suppresses immediately.
GDPR: a signed unsubscribe link is a valid "withdraw consent" mechanism. Keep your contact records minimal.
Gmail/Yahoo bulk rules (Feb 2024+): one-click unsubscribe + DKIM/SPF/DMARC are required for senders over 5,000/day.