Glossary

Learn all the terms that Emailing Expert should know! Click on a term to discover its meaning and usage.

Sunset Policy

A/B Split (A/B Testing)

A Record (Address Record)

Above the Fold

Abuse Emails

Accept-All

Account Suspended – MailChimp

Account Under Review – MailChimp

Address-by-Address Analysis

Affiliate

Alias

Allowlist

Application Programming Interface (API)

Asynchronous Bounce

Attachement

Authentication

BIMI (Brand Indicators for Message Identification)

Blacklist

Blast

Block

Blocked

Blocklist

Bounce

Bounce Handling

Bounce Message

Bounce Rate

Bulk Folder

Call to Action (CTA)

Can-Spam Act

Canadian Anti-Spam Legislation (CASL)

Canonical Name (CNAME)

Catch-all Emails

Click

Click-Through Rate (CTR)

Click-to-Open Rate (CTOR)

Cloudmark

Co-Registration

Commercial Email

Complain Rate

Complaints

Compliance

Confirmation Email

Confirmed Opt-In

Content

Conversion

Conversion Rate

CSV

De-Duplication

Dedicated IP Address

Delivered Email

Delivery Rate

Delivrability

Delivrability Rate

Delivrable

Denial-of-Service Attack or List-Bomb Attack

Disposable

Domain

Domain-Based Message Authentication, Reporting, and Conformance (DMARC)

Domain Keys

Domain Name System (DNS)

DomainKeys Identified Mail (DKIM)

Dynamic Content

Email Append

Email Checker, Email Validator, or Email Verifier

Email Client

Email Deliverability

Email Filter

Email Prefix

Email Service Provider (ESP)

Email Validation

Email Verification

Email Warm-up

Engagement

Everything List

Explicit Consent

False Positive

Feedback Loop (FBL)

Footer

Friendly Form

General Data Protection Regulation (GDPR)

Google Postmaster Tools (GPT)

Graymail

Greylisting

Hard Bounce

Header

Honeypot Spam Trap

Implicit Consent

Inactive Subscriber

Infrastructure

Internet Service Provider (ISP)

IP Address

IP Reputation

IP Warm-up

List

List Hygiene

List Rental

List-Unsubscribe

Mail Bombing

Mail Transfer Agent (MTA)

Mailbox Provider (MBP)

Mailinblack

Merge Fields

Multi-Part MIME

Multipurpose Internet Mail Extension (MIME)

MX (Mail eXchanger) Record

MX Lookup

Omnivore

Opt-In

Opt-Out/Unsubscribe

Panel Data

Permission

Phishing

Post Office Protocol (POP)

Postmaster

Preference Center

Re-Confirm Campaign

Re-Engagement Campaign

Recycled Spam Traps

Reply-To-Address

Reputation

Return Path Address

Reverse DNS

Role-Based Emails

Safe List

Seeds

Segment

Segmentation

Sender Policy Framework (SPF)

Server

Shared IP

Simple Mail Transfer Protocol (SMTP)

SMTP Bounce Codes

Snowshoeing

Soft Bounce

Spam

Spam Trap

Spam Uniform Resource Identifier Real-Time Block List (SURBL)

SpamAssassin

SpamCop

Spamhaus

Spoofing

Stale List

Tabs

Throttling

Toxic Domain

Transactional Email

UCEPROTECT

Unique Open Rate

Unsolicited Commercial Emails (UCE)

Unsubscribe

Whitelist

WHOIS

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