Email Glossary

Everything you need to know about email infrastructure, deliverability, and developer terminology.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

B

Bounce Rate

Bounce rate is the percentage of sent emails that could not be delivered to the recipient's inbox. High bounce rates damage sender reputation and deliverability.

D

Deliverability

Email deliverability is the ability to successfully deliver emails to recipients' inboxes. It encompasses sender reputation, authentication, content quality, and technical configuration.

DKIM

DKIM (DomainKeys Identified Mail) is an email authentication method that uses cryptographic signatures to verify that an email was sent by the domain it claims to be from.

DMARC

DMARC (Domain-based Message Authentication, Reporting & Conformance) is an email authentication protocol that builds on SPF and DKIM to protect domains from email spoofing.

S

SPF

SPF (Sender Policy Framework) is an email authentication method that specifies which mail servers are authorized to send email on behalf of your domain.

T

Transactional Email

Transactional emails are automated messages triggered by user actions or system events. They include password resets, order confirmations, shipping notifications, and account alerts.

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