Email guides. Backed by data.
21 in-depth guides, each one rendered live from the BadRep vault — real subject lines, real brands, real ESPs, real classification across 20+ dimensions. No invented stats. No fake examples.
● WELCOME EMAIL GUIDES
Welcome Email Guides.
● CART RECOVERY GUIDES
Cart Recovery Guides.
● WIN-BACK & RETENTION GUIDES
Win-back & Retention Guides.
● ONBOARDING GUIDES
Onboarding Guides.
● PROMOTIONAL EMAIL GUIDES
Promotional Email Guides.
● NEWSLETTER GUIDES
Newsletter Guides.
● RE-ENGAGEMENT GUIDES
Re-engagement Guides.
● ESP INTELLIGENCE
ESP Intelligence.
Klaviyo Email Examples — which brands actually use Klaviyo
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Iterable Email Examples — which brands actually use Iterable
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Customer.io Email Examples — which brands actually use Customer.io
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Braze Email Examples — which brands actually use Braze
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Kit (ConvertKit) Email Examples — which brands actually use Kit (ConvertKit)
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Beehiiv Email Examples — which brands actually use Beehiiv
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Mailgun Email Examples — which brands actually use Mailgun
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SendGrid Email Examples — which brands actually use SendGrid
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Sailthru Email Examples — which brands actually use Sailthru
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Reteno (eSputnik) Email Examples — which brands actually use Reteno (eSputnik)
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● METHODOLOGY & RESEARCH
Methodology & Research.
How to Spy on Competitor Emails — without subscribing to their lists
Read guide →
How to Research a Brand's Email Program — the full methodology
Read guide →
Email Marketing Intelligence Tools — the 2026 buyer's guide
Read guide →
How to Do an Email Teardown — the methodology lifecycle marketers actually use
Read guide →
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