What this is for#
AI writing tools (ChatGPT, Claude, Gemini) produce passable but generic email copy by default. Recipients can detect the AI tone within 2 sentences:
- "In today's fast-paced world..."
- "Moreover, furthermore..."
- "Elevate", "leverage", "robust", "seamlessly"
- Em-dashes — everywhere — and especially — in places — that don't need them
- Lists of three: clean, professional, and effective
- Hedging-everywhere caveats: "While X is generally true, it's important to note that..."
Subscribers see this every day. The moment they detect AI, two things happen:
- Trust drops — "this isn't really from a person who knows me"
- Engagement drops — generic tone = generic value = skip
The fix isn't to stop using AI. It's to use it for the right parts of the writing process. This guide walks the 5-step workflow that produces emails AI helped with, but humans wrote.
What AI does well + badly for email#
| Task |
AI is good at |
AI is bad at |
| Generating ideas from a prompt |
✅ Excellent |
|
| Structural outlines (3 sections, 5 bullets) |
✅ Excellent |
|
| Translating between languages |
✅ Very good |
Cultural nuance |
| Rewriting tone (formal → casual) |
✅ Good with clear examples |
Detecting subtle voice |
| Original metaphors / vivid examples |
|
❌ Bad — defaults to clichés |
| Specific personal details / story |
|
❌ Bad — invents fake specifics |
| Distinctive voice / personality |
|
❌ Bad — drifts to neutral-corporate |
| Calibrated humor |
|
❌ Bad — either flat or cringe |
| Knowing what your audience actually cares about |
|
❌ Bad — doesn't know your data |
| Editing for length |
✅ Good with explicit instruction |
Defaults to padding |
Use AI for: brainstorming, outlining, translation, rough drafts, second-pass editing.
Use yourself for: the hook, the specific examples, the voice, the final pass.
The 5-step workflow#
Step 1 — Brief the AI like a colleague (not a search engine)#
Bad prompt:
"Write me an email about our new feature."
Result: generic marketing fluff with all the AI tells.
Good prompt:
"I'm writing an email to 5,000 subscribers about our new automation-trigger feature. My audience is non-technical small-business marketers who use email but aren't engineers. The feature lets them fire an automation when a subscriber clicks a specific link.
Draft a 250-word email with:
- A 1-line hook that doesn't sound like marketing
- 2 short paragraphs explaining what the feature does + a concrete example (use 'when a subscriber clicks a webinar link, auto-add them to the webinar reminder sequence' as the example)
- A clear CTA: 'See it in action — 2-minute video' linking to a video tour
Voice: founder writing personally, not corporate. No marketing-speak. No 'leverage', no 'elevate', no 'in today's fast-paced'. Plain language, like talking to a friend who's busy."
Result: much closer to usable. Still needs the human passes below, but the foundation is right.
Step 2 — Get the structure, not the words#
Treat the AI output as an outline + draft, not as ship-ready copy. Pull out:
- The structural skeleton (hook → 2 paragraphs → CTA)
- The 1-2 phrasings that ring true
- The CTA wording
Discard:
- Everything generic (transition phrases, hedging caveats)
- All clichés (AI loves them)
- Any sentence that could appear in any company's email
Step 3 — Write the hook yourself#
The first 1-2 lines determine whether the email is read. Always write these yourself.
The hook needs:
- Specificity AI can't fake (your real numbers, your real story, your real voice)
- Personality the AI doesn't have
- A POV — what do YOU think? AI defaults to neutral
Bad (AI-default hook):
"We're excited to share an exciting new feature that will help you streamline your workflow."
Good (human hook):
"Last week three customers emailed asking the same thing: 'Can I trigger an automation when someone clicks a specific link?' Now you can."
Step 4 — Inject the specifics#
AI outputs vague placeholders. Replace them with specifics from your data.
| AI version |
Your version |
| "Many of our customers..." |
"47 customers..." |
| "Significant time savings" |
"Cut 90 minutes off the weekly webinar reminder process" |
| "Various use cases" |
"Webinar reminders, abandoned-checkout flows, support-ticket follow-up" |
| "Numerous improvements" |
"11 improvements in this release" |
| "Customers love..." |
"From Beth at Acme: 'This is the feature we've been waiting for.'" |
Specifics make the email yours. AI can't invent them; you have to provide them.
Step 5 — Final edit pass: kill the AI tells#
After your edits, scan the email for AI tells. Cut every one you find:
| AI tell |
Cut or replace with |
| "In today's fast-paced world" |
Just cut |
| "It's important to note that" |
Just cut; state the fact directly |
| "Moreover" / "Furthermore" / "Additionally" |
Start a new paragraph instead |
| "Elevate", "leverage", "robust", "seamlessly", "synergy" |
Find a normal word |
| Em-dashes everywhere |
Use periods or commas; em-dash for emphasis only, once per email |
| "Whether you're X or Y" hedging |
Pick one audience; address them directly |
| Lists of three with parallel structure |
Mix list lengths; vary structure |
| "Comprehensive solution" |
"Tool", "thing", "way to" |
| "Game-changing" / "Revolutionary" |
Just say what it does |
| "Foster", "drive", "enable", "facilitate" |
Pick the simple verb |
| "Cutting-edge", "state-of-the-art" |
Cut |
| "Take your X to the next level" |
Cut and rewrite |
Worked example — before + after#
AI's first draft (raw output)#
Subject: Elevate Your Email Marketing with Our Latest Feature
Hi {FIRST_NAME},
In today's fast-paced digital landscape, email marketing has evolved
significantly, and we're excited to announce a game-changing new feature
that will revolutionize how you engage with your subscribers.
Our new automation trigger system enables you to seamlessly fire targeted
automations based on subscriber click behavior, providing a comprehensive
solution for personalized engagement.
Key benefits include:
• Streamlined workflow automation
• Enhanced subscriber engagement
• Robust personalization capabilities
Whether you're a small business owner looking to optimize your customer
journey or a marketing professional seeking to elevate your campaign
performance, this feature is designed to take your email marketing to
the next level.
We invite you to discover how this powerful tool can transform your
approach to subscriber engagement.
[Learn More]
Best regards,
The {Product} Team
Every AI tell present. Subscribers detect this in 2 sentences. Trust + engagement drops.
Human-edited version#
Subject: New: trigger an automation when a subscriber clicks a link
{FIRST_NAME},
Three customers asked for this last week, so we built it.
You can now trigger an automation when a subscriber clicks a specific
link in any email. Concrete example: someone clicks the "register for
webinar" link in your newsletter, they get auto-added to the webinar
reminder sequence. No more manual list-juggling.
Setup takes ~2 minutes. We made a short walkthrough:
**[See the 2-minute walkthrough →]**
If your use case is more complex than "click → automation", reply and
tell me what you're trying to do. I'm collecting use cases for the next
iteration.
— Alice
Same feature; different read. Specific (3 customers, 2 minutes, webinar reminder example). Personal (Alice, founder voice). Honest ("we built it" not "we're excited to announce"). One clear CTA.
AI tone detection — does my email pass?#
Run your draft through this checklist before sending:
If you hit < 7 of 10, edit more.
What AI is great for in email marketing#
To be balanced — these AI workflows actually work:
| Task |
How |
| Subject line brainstorming |
"Give me 15 subject line variants for this email: [body]. Mix formulas — curiosity, specific number, direct question, controversial. Each ≤ 50 chars." |
| Translation of an English email to Vietnamese / Spanish / Japanese |
"Translate this email to {language}. Match the casual / personal / direct tone of the original; don't add formality." |
| Tightening a long email |
"Cut this email by 40% without losing meaning. Keep the hook + CTA exactly. Tighten the middle." |
| Generating segment-specific variants |
"Write 3 variants of this CTA copy: one for enterprise buyers (formal), one for SMB (friendly), one for technical users (direct)." |
| Rough first draft of repetitive content |
Welcome emails, password resets, billing notifications — high-volume + low-creativity = AI saves time |
| Re-styling existing email to match a different voice |
"Here's an email I wrote 6 months ago. Rewrite it in the voice of these 3 emails I sent last week: [paste]" |
| Editing for grammar / clarity / typos |
After your final draft — last pass for issues humans miss |
Common mistakes#
| Mistake |
Why it bites |
| Shipping AI's first draft directly |
All the tells present; subscribers detect immediately |
| Using AI to write the hook |
The 1 part where personality matters most; AI defaults to bland |
| Asking AI for "engaging copy" |
Generic instruction → generic output |
| Not feeding AI your voice / examples |
AI defaults to corporate neutral |
| AI-generated personalization ("I noticed you...") |
Sounds creepy when subscribers know it's automated |
| Letting AI invent specifics |
Hallucinated numbers / names — credibility-destroying |
| Using AI for translation without native review |
Idioms + cultural nuance get lost |
| 100% AI emails for high-value relationships |
Lifetime customers detect the shift; trust erodes |
FAQ#
Will AI detection tools flag my emails as AI-written? Sometimes — especially for early-stage AI tools (GPT-3.5 era). Modern AI + your edits typically pass detection. But more importantly, your HUMAN readers will detect AI tone even when detection tools don't. Optimize for humans, not detectors.
Can I disclose I used AI? Optional, depends on your audience. Engaged technical audiences may appreciate honesty ("ChatGPT helped me draft this; final voice + examples are mine"). Most marketing audiences don't care — they care if the content is good.
Is using AI for email writing ethical? Yes, with caveats: don't fake intimacy you don't have, don't invent customer testimonials, don't claim AI-written content is purely your own when it isn't (for content like book authorship). For marketing emails, AI as a drafting tool is standard practice.
My AI keeps adding "I hope this email finds you well" — how do I stop it? Add an explicit constraint in your prompt: "Never use phrases like 'I hope this finds you well' / 'In today's fast-paced world' / 'We're excited to announce'."
Should I train my AI on past emails to maintain my voice? Yes — paste 3-5 of your best past emails as examples + ask AI to match the voice. Significantly better than asking AI to "write in my voice" without examples.
AI for plain-text vs HTML emails? AI helps both. Plain-text is harder to AI-tone-detect because there are fewer formatting tells; the language tells still apply.
Does AI work better in some languages? AI is strongest in English; medium in Spanish / French / Vietnamese / Japanese; weak in low-resource languages. Always have a native speaker review non-English AI-generated content.
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