Definition
Email marketing basics are the core principles and building blocks you need before launching a program. At the heart of everything is permission: only send to people who asked to hear from you. From there, success rests on four pillars: list building, segmentation, relevant content and measurement.
You also need a healthy technical foundation. Showing emails land in the inbox (deliverability), not spam, depends on authentication (SPF, DKIM, DMARC), a clean list and a good sending reputation.
Finally, compliance matters everywhere. Rules like GDPR in Europe and CAN-SPAM in the US require consent, a truthful subject line and an easy way to unsubscribe on every email you send.
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Related Glossary Terms
A/B Testing
A/B testing in email marketing is the practice of sending two variations of an email to a small sample of your list to determine which version performs better before sending the winner to the remaining subscribers.
Abandoned Cart Email
An abandoned cart email is an automated message sent to customers who added items to their online shopping cart but left without completing the purchase. It is one of the highest-converting email types in ecommerce.
Account-Based Marketing Email
An account-based marketing email is a highly targeted message sent to a specific organisation or decision-maker group as part of a focused B2B strategy.
AI Email Summary
An AI email summary is a short, machine-generated overview of an email's key points, shown by Gmail, Outlook and Apple Mail before a recipient opens the message. It is reshaping how email marketers think about subject lines, preview text and open rates.
AI Inbox Summary
An AI inbox summary is an AI-generated digest that condenses unread email — often highlighting news, actions and senders — changing how clearly your marketing email reaches and engages subscribers.
AI Inbox
An AI inbox is an email client that uses artificial intelligence to summarise, sort, prioritise and sometimes answer emails before the human recipient reads them. It is transforming email marketing metrics and copywriting.
Frequently Asked Questions
Choose an email service provider, build a permission-based list, create a welcome flow, decide on a cadence, and start sending relevant content while tracking opens, clicks and conversions.
Broadly, yes: obtain consent, segment your audience, send relevant value, use clear subject lines, include an unsubscribe link, test your emails and monitor deliverability.
Open rate tells you about subject lines, click-through rate about relevance and content, and conversions about whether the email achieved its goal. Tracking them lets you improve over time.