nguyenphp/antigravity-marketing/email-marketing

Claude Code and agent skill by nguyenphp/antigravity-marketing

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Email marketing campaigns, automation sequences, newsletter optimization, and deliverability best practices.

Install

npx vskill@latest install nguyenphp/antigravity-marketing/email-marketing

SKILL.md

Email Marketing

Master email marketing for nurturing leads and driving conversions.

1. Email Types Matrix

TypePurposeFrequencyKey Metric
NewsletterNurture, valueWeekly/Bi-weeklyOpen rate
PromotionalSales, offersAs neededCTR, conversions
TransactionalConfirm, updateTriggeredDelivery rate
Welcome seriesOnboardAutomatedCompletion rate
Re-engagementWin backTriggeredReactivation rate
Abandoned cartRecover salesTriggeredRecovery rate

2. Email Structure

Anatomy of High-Converting Email
ElementBest Practice
Subject line6-10 words, curiosity/benefit
Preview textComplement subject, 40-90 chars
HeaderLogo, navigation links
HeroStrong visual, headline
BodyScannable, benefit-focused
CTAClear, action-oriented, above fold
FooterUnsubscribe, address, social

3. Subject Line Formulas

FormulaExample
Question"Ready to double your traffic?"
How-to"How to write emails that convert"
Number"7 mistakes killing your conversions"
Urgency"Last chance: 50% off ends tonight"
Curiosity"The secret top marketers don't share"
Personal"{{FirstName}}, your custom report is ready"
FOMO"Everyone's talking about this..."
Subject Line Rules
Do ✅Don't ❌
Keep 6-10 wordsALL CAPS
Use power wordsSpam triggers (FREE!!!)
A/B test alwaysMisleading promises
Match contentMultiple punctuation!!!
PersonalizeStart with "Newsletter"

4. Email Automation Sequences

Welcome Series (5-7 emails)
Email #TimingContent
1ImmediateWelcome, deliver promise
2Day 2Best content/resource
3Day 4Your story, mission
4Day 6Social proof, testimonials
5Day 8First offer
6Day 10Reminder/scarcity
7Day 14Transition to regular
Abandoned Cart (3-4 emails)
Email #TimingContent
11 hourReminder, cart items
224 hoursBenefits, overcome objections
348 hoursUrgency, limited time
472 hoursFinal offer/discount
Re-engagement (3-5 emails)
Email #TimingContent
1Day 1"We miss you"
2Day 4Best content recap
3Day 7Special offer
4Day 10Last chance warning
5Day 14Remove if no response

5. Segmentation Strategies

Segmentation Criteria
CriteriaExamples
DemographicAge, location, industry
BehavioralOpens, clicks, purchases
EngagementActive, dormant, new
LifecycleLead, customer, VIP
PreferenceContent type, frequency
Common Segments
SegmentCriteriaStrategy
New subscribers< 30 daysWelcome, educate
EngagedOpens > 50%Premium content
At-riskNo opens 60 daysRe-engagement
BuyersHas purchasedUpsell, loyalty
VIPHigh LTVExclusive offers

6. Deliverability Best Practices

Technical Setup
ElementPurpose
SPFAuthorize sending servers
DKIMVerify email authenticity
DMARCPrevent spoofing
Dedicated IPReputation control (high volume)
List Hygiene
PracticeFrequency
Remove bouncesAutomatic
Clean inactiveQuarterly
Verify new emailsOn signup
Monitor complaintsWeekly
Avoid Spam Filters
Do ✅Don't ❌
Authenticate domainBuy email lists
Clean list regularlyUse spam trigger words
Honor unsubscribesHide unsubscribe link
Balance text/imagesImage-only emails
Test before sendingIgnore bounce rates

7. Email Metrics

Key Metrics
MetricBenchmarkFormula
Open rate20-25%Opens / Delivered × 100
CTR2-5%Clicks / Delivered × 100
CTOR10-15%Clicks / Opens × 100
Conversion rate1-5%Conversions / Clicks × 100
Bounce rate< 2%Bounces / Sent × 100
Unsubscribe rate< 0.5%Unsubs / Delivered × 100
Health Indicators
MetricHealthyWarningCritical
Open rate> 20%15-20%< 15%
Bounce rate< 2%2-5%> 5%
Spam complaints< 0.1%0.1-0.3%> 0.3%
Unsubscribe< 0.5%0.5-1%> 1%

8. A/B Testing

What to Test
ElementPriority
Subject lineHigh
Send timeHigh
CTA buttonHigh
From nameMedium
Preview textMedium
Email lengthMedium
ImagesLow
Testing Rules
RuleReason
Test one variableClear results
Min sample 1000Statistical significance
Run 2-4 hoursCapture behavior
Document resultsBuild knowledge base

9. Email Design

Mobile Optimization
ElementBest Practice
Width600px max
Font size16px+ body, 22px+ headers
CTA buttons44px+ height, thumb-friendly
ImagesAlt text, max-width: 100%
Single columnEasy to scan
Dark Mode
ConsiderationSolution
LogoTransparent PNG or dark version
ImagesAdd white border/background
ColorsTest contrast in both modes

10. Email Tools

ToolBest ForPricing Model
MailchimpSMB, beginnersContact-based
KlaviyoE-commerceContact-based
ConvertKitCreatorsSubscriber-based
ActiveCampaignAutomationContact-based
BrevoTransactionalEmail volume
BeehiivNewslettersSubscriber-based
Remember: Email is permission-based. Respect your subscribers, provide value, and they'll reward you with loyalty.

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7-day trend score
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