Email marketing side hustle: skills, tools and first clients explained

By FastBuySale Newsroom · 10 Nov 2026 · 10m ago

What email marketers do

Email remains one of the most reliable channels for businesses to reach customers directly. Owners of online stores, coaches, software companies, nonprofits and local businesses use email to welcome new subscribers, share news, promote products, recover abandoned carts and keep customers engaged. Many small businesses know they should send emails but lack the time or skills. Email marketers fill this gap by planning content calendars, writing and designing emails, setting up automations, managing lists and reporting results. Because the work is done online and on flexible schedules, it suits a side hustle alongside a job or studies.

Core skills to build

Writing is central: subject lines that earn opens, clear structure, a friendly voice matching the brand and calls to action that people click. Strategy matters too, including understanding customer journeys, deciding when to send which messages and using segmentation to personalise content. Technical skills include building templates, setting up automations, managing lists and tags, and integrating forms with websites. Finally, you need to read metrics such as click rate, conversion rate and unsubscribe rate, then improve based on results.

Tools and free plans

Popular email platforms offer free plans for small lists or free trials, which let you learn interfaces, build templates and set up automations. Learn at least one widely used platform deeply, then become familiar with others clients may use. Design tools help create graphics, and spreadsheets help track results.

Learning resources

Email platforms publish free guides, courses and certifications covering best practices. Marketing blogs, newsletters from experienced email marketers and free online courses also help. Subscribe to newsletters from brands you admire and study their structure, timing and tone.

Compliance basics

Commercial emails must follow laws such as anti-spam rules requiring accurate sender information, honest subject lines, a physical postal address, a clear unsubscribe link and prompt processing of opt-outs. Some regions require explicit consent before sending marketing emails and have strict data protection rules. Advise clients to use confirmed sign-up forms and never buy email lists.

Building samples

Create a sample welcome sequence, newsletter, promotional email and abandoned cart email for a real or imaginary business, labelled as samples. Explain the goal and strategy for each.

Finding first clients

Approach small businesses whose emails are irregular or missing. Offer a defined starter project, such as a three-email welcome sequence. Join online communities of store owners and creators, and use freelance platforms with clear job descriptions. Referrals from satisfied clients often become the best source of work.

Pricing models

Freelancers may charge per email, per sequence, per project for platform setup or migration, or monthly retainers covering a set number of campaigns, reporting and list management. Retainers provide predictable income and suit side hustles because the workload is planned.

Worked example: monthly income

Priya has two retainer clients. Each pays 400 per month for four newsletters and a short report. She spends about 3 hours per newsletter, including writing, design, testing and scheduling, plus 2 hours on reporting, totalling 14 hours per client, or 28 hours a month. Monthly income is 800, giving an effective rate of about 28.57 per hour. If she builds reusable templates that cut newsletter time to 2.5 hours, each client takes 12 hours, totalling 24 hours, and her effective rate rises to about 33.33 per hour. The salary calculator on this site helps compare rates.

Reporting results

Send clients short monthly reports showing key metrics, what worked, what did not and next steps. Explain that open rates are less reliable due to privacy features, so focus on clicks and conversions.

Managing time around a job

Batch writing sessions, schedule emails in advance, set clear response times and avoid promising same-day turnarounds. Agree on deadlines that fit your availability.

Common mistakes

Mistakes include ignoring compliance, sending without testing on mobile, using vague calls to action, overloading emails with content and not tracking results.

Scams to avoid

Avoid job offers requiring payment for training or software, clients asking you to send to purchased lists and offers to pay through overpayment schemes.

Side hustle at a glance

| Area | What to focus on |

|---|---|

| Skills | Writing, strategy, automation, metrics |

| Tools | One main platform, design tool, spreadsheets |

| Samples | Welcome, newsletter, promotion, cart recovery |

| Clients | Small stores, creators, local businesses |

| Pricing | Per email, per sequence, setup projects, retainers |

| Compliance | Consent, unsubscribe, honest sender details |

Specialising for higher rates

As you gain experience, consider specialising in an industry, such as e-commerce, online education or software, or in a type of work, such as automation strategy or platform migrations. Specialists understand common challenges in their niche, can show directly relevant results and often charge more than generalists. Specialisation also makes marketing easier, because you know exactly where your ideal clients spend time online and what problems they want solved. Keep a broad understanding of email marketing while deepening expertise in one area.

Growing list sizes for clients

Some clients need help growing their subscriber lists, not just emailing existing ones. Suggest sign-up forms on websites, lead magnets such as guides or discounts, pop-ups used sensibly and links in social media profiles. Ensure every method collects proper consent. Growing lists ethically increases the value of every email you write.

Testing and improvement

Run simple tests, such as two subject lines or two calls to action, and document results. Small improvements over many sends add up, and test results make strong portfolio material.

Tax and records

Track income, platform costs and equipment. Side hustle income is usually taxable, so check local rules and keep records.

Understanding automations

Automated emails run in the background and often produce a large share of email revenue for small businesses. Common automations include welcome sequences for new subscribers, abandoned cart reminders, browse abandonment emails, post-purchase thank-you and review requests, win-back emails for inactive customers and birthday or anniversary messages. Learn how triggers, delays, conditions and exit rules work in your chosen platform, and practise building each type on a free account. Clients often pay well for automation setup because it keeps working after the project ends, and it is an excellent first project to offer because results are easy to measure.

Writing for different audiences

A newsletter for a software company reads very differently from one for a bakery or a fitness coach. Study each client's customers, tone of voice, products and goals before writing. Ask for examples of past emails that performed well and customer feedback that shows how people describe the brand. Matching voice and audience builds trust with subscribers and reduces revisions with clients.

Onboarding new clients

Use a short questionnaire covering goals, audience, brand voice, products, current platform, list size, past results and compliance practices. Request platform access through user permissions rather than shared passwords. Agree on approval steps for each email, deadlines and who presses send. A smooth onboarding process makes your service feel professional and avoids mistakes such as sending to the wrong list.

Deliverability basics

Emails that land in spam folders earn nothing. Learn the basics of sender authentication settings, list hygiene and avoiding spammy wording, and help clients clean inactive subscribers regularly.

Building a simple workflow

Create a repeatable workflow for each campaign: brief, outline, draft, design, internal check, client approval, test sends to several devices, scheduling and post-send review. Keep a checklist covering links, images, alt text, personalisation fields, unsubscribe links and sender details. A consistent workflow reduces errors, speeds up delivery and lets you handle more clients within limited side hustle hours.

Asking for testimonials

After a successful campaign or sequence launch, ask the client for a short testimonial describing the results and what it was like working with you, and add it to your portfolio.

Keeping skills fresh

Email platforms add features often. Review release notes monthly and test new features on a practice account before offering them to clients.

Reader questions

Questions about marketing side hustles? Send them through the Ask page on this site.

Disclaimer

This article is for general information only and is not legal advice. Email laws differ by country; check official guidance. No income is guaranteed.

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