Email Testing Terminology
Everything you need to know about email testing, from SMTP basics to advanced API concepts.
DKIM
DomainKeys Identified Mail - a method for email authentication that uses cryptographic signatures to verify sender identity.
Email API
A programmatic interface for sending, receiving, or managing emails without direct SMTP server interaction.
Email Bounce Handling
The process of managing undeliverable emails, including hard bounces (permanent) and soft bounces (temporary).
Email Deliverability
The ability of an email to successfully reach the recipient's inbox rather than being blocked, bounced, or sent to spam.
Email Headers
Metadata fields at the top of an email that contain routing information, sender/recipient details, and processing instructions.
Email Testing
The practice of verifying that application email functionality works correctly, including sending, content, delivery, and rendering.
Mailbox Routing
A technique for directing emails to specific destinations based on address patterns, commonly using plus-addressing (user+tag@domain).
MIME Types in Email
Multipurpose Internet Mail Extensions (MIME) define content types in emails, enabling HTML, attachments, and multiple content formats.
SMTP Testing
The process of verifying that email sending and receiving works correctly via the Simple Mail Transfer Protocol.
SPF
Sender Policy Framework - an email authentication standard that specifies which servers can send email for a domain.