๐Ÿ“š Part of the Digital Marketing Courses series by Lochan Yadav ยท BankBazaar
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๐Ÿ“ง Email ยท CRM

Email Marketing

Build lists, write campaigns that get opened, set up automations, and achieve 36:1 ROI.

โฑ 3 min read โœ๏ธ Lochan Yadav ยท BankBazaar ๐Ÿ“… May 2026
Home โ€บ Courses โ€บ Email Marketing

What Is Email Marketing?

Email marketing is direct communication with your audience through their inbox โ€” the only digital channel where you own the relationship. Unlike social media where an algorithm controls who sees your content, email reaches your subscriber directly. You send, they receive.

It is consistently the highest-ROI channel in digital marketing. According to the DMA 2025 report, brands earn an average of โ‚น36 for every โ‚น1 spent on email marketing. No other channel โ€” not paid search, not social, not display โ€” comes close to that return. The reason: you're communicating with people who already raised their hand and said "yes, I want to hear from you."

Why Email Outperforms Every Other Channel: Social reach has declined to 2โ€“5% organically. Paid ads stop the moment your budget does. But a well-maintained email list compounds in value over time. Every subscriber is a direct line to a real person who opted in. That's an asset no algorithm can take from you.

Real-World Example

BankBazaar tested a structured welcome email sequence for new user registrations โ€” 5 emails over 7 days, each serving a different purpose: a warm welcome on Day 1, loan eligibility education on Day 2, an EMI calculator walkthrough on Day 4, a product comparison on Day 6, and a soft CTA on Day 7.

The sequence drove 22% more loan applications than sending a single one-time promotional blast to the same new registrants. The lesson: context and timing matter enormously in email. The right message at the right moment in the customer journey is always more powerful than a single mass send.

Key Concepts

Audience
List Segmentation Never send the same email to your entire list. Segment by behavior (opened last campaign?), interest (product viewed), geography, or lifecycle stage. Relevant emails get opened; generic ones get deleted.
Relevance
Personalization Use the subscriber's first name, reference their past behavior, recommend products they've browsed. Behavior-based personalization can lift open rates by 26% and click rates by 14%.
Efficiency
Automation Flows Welcome series, abandoned cart recovery, re-engagement campaigns, and post-purchase follow-ups. Set them up once and they run 24/7 without ongoing effort, generating revenue while you sleep.
Reputation
Deliverability SPF, DKIM, and DMARC records authenticate your sending domain. Clean your list regularly โ€” remove bounces and unengaged contacts. Avoid spam trigger words in subject lines. Inbox placement is earned.
๐Ÿ“ฌ

Email Automation Flows

๐Ÿ‘‹ Welcome Series โ€” Greet, educate, and establish value with new subscribers (Days 1โ€“7)
๐Ÿ“– Nurture Sequence โ€” Share expertise, build trust, answer common objections (Weeks 2โ€“4)
๐Ÿ’ณ Convert Flow โ€” Product-specific emails with social proof and a clear CTA (At decision point)
๐Ÿ”„ Re-engage Campaign โ€” Win back subscribers who haven't opened in 90+ days before removing them

Step-by-Step Process

1

Choose Your ESP (Email Service Provider)

Mailchimp is ideal for beginners โ€” generous free tier, drag-and-drop builder, solid analytics. Klaviyo excels for e-commerce with deep Shopify integration. HubSpot Email is best for B2B CRM workflows. Pick based on your business type and expected list size.

2

Build Your List Ethically

Opt-in forms on your website, lead magnets (free guides, calculators, checklists), and gated content. Never buy or rent email lists โ€” they destroy deliverability and violate GDPR/CAN-SPAM. Every subscriber must have explicitly consented to hear from you.

3

Segment Your List by Behavior and Interest

At minimum: new subscribers, active subscribers (opened in last 30 days), and inactive subscribers (not opened in 90+ days). Add segments by product interest, geography, or purchase history as your list grows. The more relevant the segment, the higher the engagement.

4

Write a 5-Email Welcome Sequence

Email 1 (Day 0): Deliver the lead magnet and set expectations. Email 2 (Day 2): Teach something valuable. Email 3 (Day 4): Show a case study or social proof. Email 4 (Day 6): Handle the most common objection. Email 5 (Day 8): Make your softest possible ask.

5

Set Up Key Automations

Abandoned cart emails recover 10โ€“15% of lost revenue on average. Re-engagement campaigns (sent at 60 and 90 days of inactivity) preserve list hygiene. Post-purchase sequences increase LTV. These run automatically โ€” build them once, profit indefinitely.

6

A/B Test Subject Lines Every Send

Split your list 50/50 on subject lines. Test one variable at a time: length, personalization, curiosity vs. directness, emoji vs. plain text. The winning version goes to the remaining list. Over time, you build a playbook of what your specific audience responds to.

Subject lines determine 50% of your campaign's success. Test at least 2 subject lines every time you send. Short, curiosity-driven lines usually win โ€” but the only data that matters is what your audience clicks. Build your own A/B test log and review it quarterly.

Essential Tools

MailchimpBest-in-class for beginners with a generous free tier and visual builder
KlaviyoE-commerce powerhouse with deep Shopify/WooCommerce integrations
HubSpot EmailB2B-focused email within a full CRM โ€” ideal for sales-led growth
ActiveCampaignAdvanced automation workflows, conditional logic, and lead scoring
LitmusPreview how emails render across 90+ email clients before sending
Mail-TesterFree spam score check โ€” test deliverability before every major send

Where to Learn More

๐ŸŸ 
HubSpot Academy โ€” Email Marketing Certification
Free, highly recommended certification covering list building, segmentation, deliverability, automation, and A/B testing. One of the most practical certifications available.
Free ยท Certified ยท Highly Recommended
๐Ÿต
Mailchimp โ€” Email Marketing for Beginners
Free official training from Mailchimp covering the fundamentals of email strategy, campaign creation, list management, and reading analytics for beginners.
Free ยท Beginner-Friendly
๐ŸŽ“
Coursera โ€” Email Marketing by Constant Contact
Free course covering email marketing strategy, contact list growth, email design, and metrics. Practical, beginner-friendly, and applicable to any ESP.
Free ยท Certificate
๐Ÿ’ผ
LinkedIn Learning โ€” Email Marketing Foundations
Structured video course covering email strategy, copywriting, design, automation, and analytics. Good for professionals looking to add a formal credential.
Paid ยท Certificate

Read the Blog for AI-Era Marketing Insights

Email marketing is evolving with AI-personalization and generative content tools. The blog covers how practitioners are adapting their email strategies in the AI era.

Read the Blog โ†’