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Prompt Templates for Email: Subject Lines to Sequences

Ready-to-use AI prompt templates for email subject lines, newsletters, drip sequences, and campaigns. Copy, customize, and send.

Robert Soares

Email still works. But only if people open it, read it, and act on it.

AI can help with all three. Better subject lines get more opens. Better copy gets more reads. Better CTAs get more clicks. But you need prompts that actually produce usable output.

These templates cover the full email spectrum: subject lines, newsletters, drip sequences, transactional emails, and campaigns. They’re structured to get results you can actually use, not generic filler you’ll have to rewrite.

Email marketing with AI-optimized subject lines can improve open rates by 25% or more. But that requires prompts that give AI enough context to work with.

Let’s get into the templates.


Subject Line Templates

Subject Line Batch Generator

Generate 10 email subject lines for [describe the email content].

Email details:
- Email type: [newsletter, promotion, announcement, transactional, etc.]
- Main message: [what's the key content]
- Target audience: [who's receiving this]
- Goal: [opens, clicks, replies]
- Tone: [urgent, curious, friendly, professional, playful]

Generate a mix of:
- Benefit-focused (2-3): What they'll get or learn
- Curiosity-driven (2-3): Creates intrigue without clickbait
- Question format (2): Engages directly
- Direct/clear (2): Says exactly what it is
- Number-based (1-2): Lists or statistics if appropriate

Character limits: Keep under 50 characters. Preview text visible on mobile matters.

Avoid: ALL CAPS, excessive punctuation, spam trigger words, false urgency, clickbait that doesn't deliver.

A/B Test Subject Lines

I need to A/B test subject lines for [email campaign].

Email content: [brief description]
Audience: [describe]
Current best performer: [if you have one]
What we're testing for: [opens, clicks, or specific metric]

Create 4 subject line pairs for testing:

Pair 1: Benefit vs. Curiosity
- Option A (benefit): [focuses on what they get]
- Option B (curiosity): [creates intrigue]

Pair 2: Short vs. Descriptive
- Option A (short): [under 30 characters]
- Option B (descriptive): [40-50 characters with more detail]

Pair 3: Question vs. Statement
- Option A (question): [engages directly]
- Option B (statement): [tells them what to expect]

Pair 4: Personalized vs. General
- Option A (uses personalization): [with [First Name] or similar]
- Option B (general): [no personalization tokens]

For each pair, note what we're testing and what result would tell us.

Subject Line Rewrite

These subject lines are underperforming. Help me improve them.

Current subject lines:
1. [paste subject line 1] - Open rate: [%]
2. [paste subject line 2] - Open rate: [%]
3. [paste subject line 3] - Open rate: [%]

Email context: [what the emails were about]
Audience: [who received them]
Industry benchmark: [if known]

For each underperforming subject line:
1. Why it might be underperforming
2. Three improved alternatives
3. What principle the improvements follow

Keep the same essential message but make it more compelling.

Newsletter Templates

Weekly Newsletter Framework

Create a newsletter for [company/brand] for [date/week].

Newsletter details:
- Audience: [describe subscribers]
- Newsletter name: [if applicable]
- Frequency: [weekly, bi-weekly, monthly]
- Typical sections: [what you normally include]
- Tone/voice: [describe brand voice]

This week's content:
- Main story/feature: [describe]
- Secondary items: [list 2-3 other things to include]
- CTA priority: [what action do you most want readers to take]
- Any timely hooks: [news, events, seasonal relevance]

Create:
1. 5 subject line options (different angles)
2. Preview text that complements each subject line
3. Opening hook (2-3 sentences that pull them in)
4. Main story section (150-200 words)
5. Secondary content briefs (50-75 words each)
6. Closing CTA section
7. P.S. line (if appropriate)

Keep total word count under [target]. Make it scannable with clear section breaks.

Newsletter Content Repurposing

I have this content and want to turn it into a newsletter section:

Original content:
[paste blog post excerpt, social post, or other content]

Newsletter context:
- Audience: [who reads your newsletter]
- Section this is for: [main feature, quick tip, etc.]
- Word limit: [how many words for this section]
- CTA: [what action should follow this content]

Rewrite this for newsletter format:
- Make it scannable (short paragraphs, maybe bullets)
- Adjust the hook for email readers (they're scanning)
- Include a clear takeaway
- Add transition to CTA

Keep the core value but adapt the format for email reading patterns.

Newsletter Series Planning

Help me plan a [number]-part newsletter series on [topic].

Audience: [describe]
Goal of series: [educate, nurture toward purchase, establish expertise, etc.]
Frequency: [how often these will go out]
Word count per issue: [target]

Create a series plan with:

For each issue:
- Focus/theme
- Subject line option
- Key points to cover
- CTA (may build throughout series)
- Hook for next issue (creates anticipation)

The series should:
- Build knowledge progressively
- Each issue provides standalone value
- Create momentum toward the final CTA
- Feel like a journey, not random topics

Also suggest: What should happen after the series ends?

Drip Sequence Templates

Welcome Sequence

Create a [number]-email welcome sequence for new [subscribers/customers/trial users].

Context:
- What triggered signup: [lead magnet, purchase, free trial, etc.]
- What they want: [why did they sign up]
- What we want: [eventual goal - purchase, engagement, etc.]
- Brand voice: [describe tone]

For each email, provide:
- Timing (when it sends relative to signup)
- Subject line
- Goal of this specific email
- Key message (1-2 sentences)
- Content outline (main points to cover)
- CTA

Sequence structure suggestions:
- Email 1: Deliver on the promise + set expectations
- Email 2: Quick win or immediate value
- Email 3: Story or social proof
- Email 4: Address common questions/objections
- Email 5: Primary CTA with urgency/reason

Make each email valuable on its own, but build toward the final goal.

Nurture Sequence

Create a nurture sequence for [lead segment/audience].

Lead context:
- How they entered our list: [source]
- Where they are in buying journey: [awareness, consideration, decision]
- What they're interested in: [based on behavior or stated interest]
- Buying timeline: [urgent, researching, not ready yet]

Sequence goals:
- Move them from [current stage] to [next stage]
- Build trust and demonstrate expertise
- Eventually convert to [desired action]

Create a [number]-email sequence:

For each email:
- Timing
- Subject line
- Email focus (educational, story, social proof, etc.)
- Key value provided
- Soft vs. hard CTA
- Content brief (what the email covers)

Balance education with conversion. Not every email should sell, but every email should move them forward.

Re-Engagement Sequence

Create a re-engagement sequence for [inactive subscribers/customers].

Audience context:
- Last activity: [how long ago]
- What they originally signed up for: [if known]
- What they've ignored: [how many emails without opens/clicks]

Goals:
- Primary: Re-engage and return to active status
- Secondary: Get inactive users to unsubscribe (clean the list)

Create a 3-email sequence:

Email 1 (check-in):
- Subject line options
- Tone: curious, not desperate
- Ask if they still want to hear from us
- Remind them why they signed up

Email 2 (value):
- Subject line options
- Offer something valuable (exclusive content, discount, etc.)
- Show what they've been missing
- Clear CTA to re-engage

Email 3 (breakup):
- Subject line options
- Final notice before removing
- Make it easy to stay if they want
- Clean exit if they don't

Space these [X days] apart. Each email should feel different, not repetitive.

Post-Purchase Sequence

Create a post-purchase email sequence for customers who bought [product/service].

Purchase context:
- What they bought: [product/service]
- Price point: [if relevant to tone]
- What they need to succeed: [onboarding, resources, support]
- Next logical purchase: [upsell opportunity]

Sequence goals:
- Ensure they're successful with their purchase
- Reduce support tickets by proactive education
- Build loyalty for repeat purchase
- Eventually: [upsell/cross-sell/referral]

Create a [number]-email sequence:

Suggested structure:
- Email 1 (immediate): Order confirmation + what to expect
- Email 2 (day 1-2): Getting started/onboarding help
- Email 3 (day 5-7): Check-in + resources for common questions
- Email 4 (day 14): Success story or advanced tips
- Email 5 (day 30): Request feedback/review + next steps

For each, provide timing, subject, goal, and content brief.

Campaign Email Templates

Product Launch Email

Write a product launch email for [product name].

Product details:
- What it is: [brief description]
- Key features: [list 3-5]
- Main benefit: [what problem it solves]
- Price/offer: [pricing, launch special if any]
- Availability: [when, where, limitations]

Audience: [who's receiving this]
Relationship: [existing customers, warm leads, cold list]
Launch context: [highly anticipated, completely new, iteration]

Write:
1. Subject line options (5)
2. Preview text options (3)
3. Email body including:
   - Opening hook (why should they care)
   - Product introduction (what it is and why it matters)
   - Key benefits (3-4, customer-focused)
   - Social proof if available
   - Offer details
   - CTA (clear and prominent)
   - P.S. line (urgency or additional hook)

Tone: [excited but not hype-y, professional, casual, etc.]
Length: [under X words]

Promotional/Sale Email

Write a promotional email for [sale/offer].

Offer details:
- What's the offer: [discount, bonus, bundle, etc.]
- Deadline: [when does it end]
- Limitations: [first 100 customers, members only, etc.]
- Products included: [what's on sale]

Context:
- Reason for the sale: [seasonal, anniversary, flash, etc.]
- Audience: [who's receiving this]
- Have they heard about this already: [first email, reminder, last chance]

Write:
1. Subject line options (5, including urgency options)
2. Preview text
3. Email body:
   - Hook that creates interest
   - Clear offer statement
   - What's included (brief)
   - Why now (urgency without being pushy)
   - CTA (prominent and clear)
   - Secondary CTA or P.S.

If this is a [first/reminder/final] email in the sequence, adjust the urgency and angle accordingly.

Event Invitation Email

Write an email inviting [audience] to [event name].

Event details:
- Type: [webinar, conference, workshop, launch event, etc.]
- Topic: [what it's about]
- Date/time: [when]
- Duration: [how long]
- Format: [live, recorded, in-person, virtual]
- Cost: [free, paid, member benefit]
- Speakers/hosts: [who]
- What they'll learn/get: [key takeaways]

Audience:
- Who's invited: [describe]
- Why they should care: [what's in it for them]
- Barriers to attendance: [time, cost, skepticism]

Write:
1. Subject line options (5)
2. Preview text
3. Email body:
   - Hook (why this event matters to them)
   - Event details (clear and scannable)
   - What they'll learn/get (benefits, not just agenda)
   - Social proof if available (speakers, past attendees)
   - Registration CTA (prominent)
   - Logistics reminder (date, time, how to join)

Make it easy to say yes. Address potential objections.

Transactional Email Templates

Order Confirmation Enhancement

Improve this basic order confirmation email to increase engagement and lifetime value.

Current content:
[paste existing order confirmation or describe what you send]

Order context:
- Product type: [what they bought]
- Customer type: [first-time, repeat, VIP]
- Post-purchase opportunity: [upsell, referral, review, community]

Rewrite to include:
1. Essential transaction info (order number, items, shipping)
2. Next steps clearly stated
3. Expected timeline
4. Support info (but not prominently)
5. One value-add that isn't salesy:
   - Getting started tips
   - Care instructions
   - Community invite
   - Complementary content

Keep the transactional info clear but add warmth and value. Don't clutter essential information with marketing.

Feedback Request Email

Write an email requesting [feedback type] from customers.

Context:
- What they purchased/experienced: [product/service]
- How long ago: [timing]
- What we're asking for: [review, survey, testimonial, NPS]
- Where we want the feedback: [platform, survey link, reply]
- Incentive if any: [discount, entry to win, etc.]

Write an email that:
- Reminds them of their positive experience (if applicable)
- Makes the ask clear and simple
- Tells them how long it will take
- Explains why their feedback matters
- Provides easy path to complete
- Thanks them regardless

Tone: grateful, not desperate. Personal, not automated-feeling.
Length: short. The email's job is to get the click, not explain everything.

Quick Email Prompts

For when you need something fast.

Quick Subject Line

Give me 5 subject lines for an email about [topic] to [audience]. Goal is [opens/clicks]. Mix of curiosity, benefit, and direct approaches.

Quick Email Draft

Write a [length] email to [audience] about [topic]. Tone: [describe]. CTA: [action]. Start with [hook type] and end with [closing approach].

Quick Sequence Outline

Outline a [number]-email sequence for [goal]. List timing, subject line idea, and one-sentence purpose for each email.

Quick Email Refresh

This email has a [X%] open rate. Subject: [paste]. Rewrite the subject line and first two sentences to improve it. Keep the same core message.

Using These Templates Effectively

Layer in Your Data

These templates get you structure. Your data makes them effective.

Before generating email content:

  • Know your audience’s actual behavior (what have they opened before?)
  • Reference past performance (what subject lines worked?)
  • Include relevant context (what else have they received recently?)

Test, Don’t Guess

Generate variations. Test them. Learn from results.

Every subject line prompt gives you options for a reason. Use them to A/B test and build knowledge about what works for your specific audience.

Maintain Consistency

If you’re generating a sequence, generate it all at once. Or at least provide the AI with context about previous emails in the sequence.

This is email 3 of 5. Previous emails covered [X] and [Y]. This email should [Z] while maintaining the same voice and building on what came before.

Review Before Sending

AI gets you a solid draft. You make it great.

Check:

  • Does this sound like us?
  • Would I open this?
  • Is the CTA clear?
  • Is there anything that could be misread?
  • Does it work on mobile?

For more on the email content workflow, see our marketing templates and sales templates. For fixing what doesn’t work, check out prompt debugging.

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