email-best-practices

To ensure transactional email deliverability, configure SPF, DKIM, and DMARC DNS records for your sending domain. This authenticates outgoing emails, helping them bypass spam filters and reliably reach recipient inboxes.

Transactional emails provide essential account information like password resets, while marketing emails promote services. CAN-SPAM, GDPR, and CASL compliance rules differ significantly between these categories, primarily affecting consent requirements and mandatory unsubscribe mechanisms.

Implement idempotency and retry logic in your email sending architecture to handle temporary API failures safely. This reliability pattern prevents duplicate transactional emails from being dispatched during network timeouts or service disruptions.

Processing email webhooks requires handling delivery events and bounces for both transactional and marketing systems. You must parse these payloads to update delivery statuses and maintain reliable, compliant email infrastructure.

Ensuring global email compliance requires adhering to CAN-SPAM, GDPR, and CASL regulations simultaneously. You must implement proper consent tracking, physical address inclusion, and clear unsubscribe mechanisms across all outbound emails.