Unsubscribe & Suppression
Every notification-class email Eventonomy sends carries a one-click unsubscribe link in its footer. Recipients who opt out stop receiving notification mail immediately - while the emails that matter to their own registrations and orders keep arriving. This is built in, legally required behaviour (CAN-SPAM / GDPR), and there is nothing to configure.
What You Will Learn
- Which emails carry the unsubscribe link (and which are exempt)
- What happens when a recipient clicks unsubscribe
- How recipients resubscribe
- Why receipts and tickets are never blocked
- How developers classify custom email types
Two Classes of Email
Eventonomy classifies every email it sends as either transactional or notification:
| Class | Behaviour | Examples |
|---|---|---|
| Transactional | Always delivered. No unsubscribe link, never suppressed. | RSVP confirmations, order receipts, magic-link management emails, event approval/rejection verdicts, cancellation and reschedule notices, waitlist promotions |
| Notification | Carries the one-click unsubscribe link; suppressed for recipients who opted out. | Event reminders, new-event announcements, attendee blasts, Pro follower notifications |
Transactional mail is exempt because the recipient's own action triggered it, or it carries critical information about their relationship to an event - an unsubscribed attendee still gets their ticket, their receipt, and the notice that their event was cancelled.
What Happens on Unsubscribe
- The recipient clicks Unsubscribe in any notification-class email footer.
- A confirmation page opens: "You're unsubscribed - you will no longer receive event notification emails from this site. Essential emails about your own registrations and orders will still be delivered."
- From that moment, every notification-class send skips that address automatically - reminders, announcements, and attendee blasts included.

A few things worth knowing about how it works:
- The unsubscribe link is unique per recipient and tamper-proof - it never contains the raw email address, and a modified link simply shows a neutral "this link is not valid" page.
- It works for guests and members alike; no login or account is needed.
- The opt-out applies to notification-class email from this site only - it is not a WordPress-wide setting.
Resubscribing
The confirmation page shown after unsubscribing includes a Resubscribe button. One click restores notification-class email for that address - useful when someone unsubscribed by accident. (Any unsubscribe link from a previous email reopens that same page.)
Suppression Never Blocks Purchases or RSVPs
Suppression only filters notification-class sends. An unsubscribed visitor can still:
- RSVP to any event and receive the RSVP confirmation.
- Buy tickets and receive the order receipt and PDF invoice.
- Receive their magic link to manage a guest RSVP.
- Be told when an event they registered for is cancelled or rescheduled.
Organizer-sent attendee blasts respect suppression - opted-out registrants are skipped at send time, and the compose panel says so.
For Developers: Classifying Custom Emails
The classification map is filterable via evnm_email_classes (email key → 'transactional' or 'notification'). Unknown keys default to notification - the legally safe direction: a new bulk email type is suppressible and carries the opt-out link unless it explicitly registers itself as transactional.
// Register a custom email key as transactional (exempt from suppression).
add_filter( 'evnm_email_classes', function ( $classes ) {
$classes['my_shipping_update'] = 'transactional';
return $classes;
} );
What's Next?
Review the full Notifications settings tab.