Email API Use Cases
See how developers use Unosend to send transactional emails. From welcome emails to order confirmations, we've got you covered.
Welcome Emails
Send beautiful welcome emails automatically when users sign up. Make a great first impression and boost engagement from day one.
Password Reset Emails
Send secure password reset emails instantly. Time-limited tokens, branded templates, and guaranteed delivery.
Order Confirmation Emails
Send order confirmation emails with itemized details, tracking info, and branded templates. Keep customers informed.
Shipping Notification Emails
Send shipping updates with tracking links. Notify customers when orders ship, are out for delivery, or arrive.
Email Verification
Send email verification links to confirm user accounts. Reduce fake signups and improve deliverability.
Invoice Emails
Send invoices and billing emails with PDF attachments. Automated billing notifications for SaaS and e-commerce.
Two-Factor Authentication Emails
Send 2FA codes via email for secure authentication. Time-limited OTPs with instant delivery.
App Notification Emails
Send app notifications via email. Comments, mentions, updates, and activity alerts to keep users engaged.
Security Alert Emails
Deliver critical security notifications — new device logins, password changes, suspicious activity alerts — instantly via the Unosend API. Keep your users safe with real-time security emails that build trust.
Onboarding Email Sequences
Build automated onboarding email sequences that guide new users through your product. Send welcome emails, feature tutorials, and activation reminders to maximize user engagement and reduce churn.
Review Request Emails
Increase your review count by sending automated review request emails after purchases, service completions, or key milestones. Boost social proof and SEO with user-generated content.
Subscription Reminder Emails
Send subscription renewal reminders, payment failure notifications, and plan expiration alerts. Keep customers informed about their subscription status to prevent involuntary churn.
Appointment Reminder Emails
Send automated appointment reminders with calendar details, rescheduling links, and preparation instructions. Reduce no-show rates by up to 50% with well-timed reminder emails.
Don't see your use case?
Our email API works for any transactional email. Contact us for custom solutions.