Transactional emails are one-off emails sent to one or very few recipients and are customized specifically for the recipient. Common uses include:

• Follow-up and reminder emails
• Forgotten password emails
• Order confirmations and receipts
• Various other one-off emails

Sending transactional emails through MailChimp is against our Terms Of Service. If you need to send transactional emails, please look into our Transactional Email Service Mandrill.