# Email Campaigns > Email marketing campaign creation covering subject line optimization, A/B test design, template generation, segmentation strategies, and performance tracking. This skill should be used when Cline needs to create, optimize, or analyze email marketing campaigns — from individual newsletter editions to automated drip sequences and promotional blasts. - Skill: `thearchitectit/email-campaigns` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add thearchitectit/email-campaigns` - Raw SKILL.md: https://api.skillmd.com/api/skills/thearchitectit/email-campaigns/raw - Safety review: pending - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Marketing & Growth - Author: TheArchitectit (https://skillmd.com/u/thearchitectit) - Updated: 2026-09-21 - Page: https://skillmd.com/skills/thearchitectit/email-campaigns --- # Email Campaigns This skill creates and optimizes email marketing campaigns. It covers subject line crafting and testing, email template design, audience segmentation, A/B test planning, drip sequence design, and performance analysis. Every campaign balances conversion goals with subscriber trust. ## When to Use This Skill - Writing email subject lines that drive opens - Designing A/B tests for subject lines, content, or send times - Creating email templates for newsletters, promotions, and transactional emails - Planning email drip sequences and automation workflows - Segmenting audiences for targeted messaging - Analyzing campaign performance and recommending improvements - Creating welcome sequences, onboarding emails, and re-engagement campaigns - Writing email copy that converts without being pushy ## What This Skill Does 1. **Subject Line Optimization**: Craft and test high-open-rate subject lines 2. **A/B Test Design**: Plan statistically valid tests for email elements 3. **Template Creation**: Build reusable email templates with proper structure 4. **Sequence Design**: Plan drip campaigns and automated email flows 5. **Performance Analysis**: Track metrics and optimize based on data ## Process ### Step 1: Define the Campaign ```markdown ## Campaign Brief - **Campaign name**: [Descriptive name] - **Type**: [Newsletter / Promotion / Welcome / Onboarding / Re-engagement / Transactional] - **Goal**: [What action should recipients take?] - **Audience**: [Segment — who receives this?] - **Send frequency**: [One-time / Daily / Weekly / Triggered] - **Success metric**: [Open rate / Click rate / Conversion rate / Revenue] - **Target numbers**: [Specific goal: e.g., 25% open rate, 3% click rate] - **Sender name**: [Who is this from?] - **Landing page**: [Where does the primary CTA link?] ``` ### Step 2: Subject Line Optimization Generate and evaluate subject line variants: ```markdown ## Subject Line Framework ### Variants by Approach **Curiosity** (what happens next?) - The one thing your [audience] is missing about [topic] - I didn't expect this to work (but it did) - [Number] [things] your competitors already know **Urgency/Scarcity** (time-sensitive) - 24 hours left: [offer/benefit] - [Deadline] is almost here — here's what to do - Last chance to [action] **Benefit-Driven** (what's in it for them?) - How to [achieve outcome] in [timeframe] - The simple way to [solve problem] - Get [benefit] without [common obstacle] **Personal/Social Proof** (human connection) - How [person/company] achieved [result] - What I learned after [experience] - [Number] people already [action] — here's why **Direct** (for B2B / transactional) - [Action required]: [what/why] - Your [thing] is ready - Update: [what changed] ### Subject Line Checklist - [ ] Under 50 characters (mobile displays ~40-50) - [ ] First 20 characters contain the hook (preview text matters) - [ ] No misleading claims (trust > clicks) - [ ] No ALL CAPS or excessive punctuation (!!!) - [ ] Personalization where appropriate (first name, company) - [ ] Aligned with email content (no bait-and-switch) - [ ] Preview text complements the subject line (don't repeat) ``` ### Step 3: A/B Test Design ```markdown ## A/B Test Plan ### Test: Subject Line Optimization - **Variable**: Subject line wording - **Variants**: - A (Control): [Original subject line] - B (Challenger): [Modified subject line] - **Split**: 50/50 of test segment (minimum 1,000 per variant) - **Duration**: 24 hours (most opens occur in first 4-8 hours) - **Primary metric**: Open rate - **Secondary metric**: Click rate (are we attracting the right opens?) ### Test: CTA Design - **Variable**: Button text and placement - **Variants**: - A: "Learn More" button below main content - B: "Get Started Now" button above fold + below content - **Split**: 50/50 - **Primary metric**: Click-through rate - **Secondary metric**: Conversion rate on landing page ### Test: Send Time - **Variable**: Day and time of send - **Variants**: - A: Tuesday 10:00 AM - B: Thursday 2:00 PM - **Split**: 25/25 (hold 50% for the winner rollout) - **Primary metric**: Open rate + click rate combined - **Duration**: Test both sends, compare 48-hour results ### A/B Test Rules 1. **Test one variable at a time** — multiple changes = unclear results 2. **Wait for statistical significance** — don't call a test after 100 opens 3. **Segment equally** — ensure both variants see similar audience quality 4. **Document everything** — results, hypotheses, and learnings for future tests 5. **Roll out the winner** — don't leave performance on the table ### Significance Calculator - Need at least 1,000 opens per variant for reliable results - A 5-10% difference in open rates is typically meaningful - Use a chi-squared test or online calculator for formal significance testing ``` ### Step 4: Email Template Creation ```html {{subject}}

{{brand_name}}

{{headline}}

{{intro_paragraph}}

{{cta_text}}

{{section_title}}

{{section_content}}

{{company_name}} · {{company_address}}

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``` **Template best practices**: - Use tables for layout (not div/CSS grid — email clients vary wildly) - Inline all styles (most clients strip `