Delivery rate

The percentage of emails accepted by recipient servers. Calculated as delivered emails divided by total sent; or as sent emails minus soft and hard bounces.

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A

A/B testing

A

AMP for Email

A

API

A

Alt Text

A

Analytics

A

Audience

A

Automations

B

Best practices

B

Blacklist / Blocklist

B

Bounce rate

B

Bounces

C

CAN-SPAM

C

CCPA (California Consumer Privacy Act)

C

CPC (Cost Per Click)

C

CPM (Cost Per Mille)

C

Call to action (CTA)

C

Campaign

C

Campaign editor

C

Churn rate

C

Click rate

C

Click through rate (CTR)

C

Contacts

C

Content

C

Conversion rate (CVR)

C

Custom fields

D

DKIM

D

DMARC

D

Deliverability

D

Delivery rate

D

Double opt-in

D

Drip Campaign

D

Dynamic content

E

ESP

E

Email authentication

E

Email client

E

Engagement

E

Engagement score

E

Export

F

Feedback loop (FBL)

F

Footer

G

GDPR (General Data Protection Regulation)

G

Growth

H

Header

H

Hero image

I

IP address

I

ISP

I

Import

I

Inactive subscriber

I

Inbox placement

I

Integrations

K

Knowledge Base

L

List fatigue

L

List hygiene

M

MTA (Mail Transfer Agent)

M

MX record

M

Manage preferences

M

Migration

M

Monetization

N

Newsletter

O

Open rate

O

Opt in

O

Opt out

P

PTR record (Reverse DNS lookup)

P

Partner Program

P

Permission-based sending

P

Personalization

P

Plain text version

P

Preference center

P

Preheader text

P

Publication

R

RSS feed

R

Re-engagement campaign

R

Rendering

R

Responsive design

R

Retargeting

R

Revenue Per Recipient (RPR)

R

Revenue per email (RPE)

S

SMTP (Simple Mail Transfer Protocol)

S

SPF

S

Safelist

S

Seed list

S

Segments

S

Senders

S

Spam trap

S

Subject line

S

Subscribe forms

S

Subscribers

T

TLS (Transport Layer Security)

T

Template

T

Throttling

T

Transactional email

T

Triggered email

U

URL

U

Unsubscribe

W

Webhooks

W

Welcome email

W

Whitelist