Send an event reminder to your guests by signing into your account and:
1. Go to Invitations > Manage Events
2. Find the event that you want to send a reminder for.
3. In the 'options' drop-down list, select "Send Reminder"
4. Select who you want the reminder sent to from the drop-down list.
5. Click the "Create eCard" button, and continue editing and sending the reminder.