Test emails

Email branding gives you a live preview of every attendee email your event can send: confirmation, reminders, waitlist promotions, announcements, and more, rendered against your event's actual title, date, venue, and logo. You can also send a copy to any email address to see exactly what attendees will receive.

Open the event, go to Settings, then Attendee emails, and choose Email branding. It sits beside Nudges and Session picks in the same group, so the settings for what those automatic emails say are one row up. See Automatic reminders for how to change their subject line and intro paragraph.

Previewing a template

Use the Email type dropdown to pick from 21 templates. The selection covers every email Events can send, including:

• Registration confirmation, invitation, approval, and decline
• Reminders, 24 hours before, 2 hours before, and operator campaign
• Waitlist promoted, event cancelled, refund approved, refund denied
• Attendee message notification and operator reply
• Session selection request, ticket transfer invite and follow-up, announcement published

Once you pick a template, the rendered email appears in a sandboxed iframe below the dropdown. The subject line is shown above the preview. Switching templates reloads the preview automatically.

Sending a test

Below the preview, enter one or more email addresses in the Send test to field. You can separate multiple addresses with commas, spaces, or new lines. The field starts empty, you must enter at least one address before the Send test button becomes active.

Each address is sent separately and in sequence. The subject line is prefixed with [TEST] so the message is clearly distinguishable from a real send. After the send completes, a result row appears per address showing either "Sent." or the error message.

In local development environments where RESEND_API_KEY is not configured, sends show "Skipped, no RESEND_API_KEY in this env" rather than an error. That is expected behavior for local dev, not a failure.

Using the email logo upload

At the top of Email branding is the Email logo card. The logo you upload here appears in the header of every transactional email this event sends, confirmation, reminders, announcements, and every other template.

If you leave it blank, emails fall back through a resolution chain: the event's microsite logo, then your organization logo, then the Mercleo wordmark. Upload a dark-on-light variant: all transactional emails sit on a white background.

After uploading, switch the template in the preview dropdown to see the new logo reflected immediately. For full documentation on the email logo and how it interacts with your event branding, see Confirmation emails.

What test sends don't do

Test sends are read-only against your event's registration data. Sending a test email does not:

• Create an attendee or registration record
• Increment your event's registration count or affect capacity
• Trigger any real attendee-facing actions (calendar invites, Stripe charges, waitlist logic)
• Appear in your event's email history or analytics

The attendee name, ticket code, and price shown in the test email are synthetic placeholders. The only real data in the email is what comes from your event record itself: title, date, venue, and logo.