Deliverability
Deliverability is a concept in email marketing and communication that refers to the ability of an email to successfully reach a recipient's inbox rather than being blocked, filtered as spam, or bounced. It involves technical, content, and reputation factors that influence whether email service providers accept and deliver messages. High deliverability ensures that emails are seen by intended recipients, which is critical for engagement and campaign success.
Developers should learn about deliverability when building or maintaining email systems, marketing platforms, or communication tools to ensure messages reliably reach users. It's essential for applications that send transactional emails (e.g., password resets, notifications) or bulk marketing emails to avoid high bounce rates and spam complaints. Understanding deliverability helps optimize email infrastructure, improve sender reputation, and comply with regulations like CAN-SPAM or GDPR.