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Email for content marketers

Turn your posts into your email newsletter in one prompt.

Draft your next issue and four supporting flows in Claude or ChatGPT, then review them before they go live.

The promptskills/content.md

Then paste it into Claude or ChatGPT.Start free
Use Nitrosend to turn my posts into my email newsletter: 

Read https://nitrosend.com/skills/content.md and follow it step by step.

1. Connect Nitrosend.
2. Read my latest posts and check what I already have, then build what is missing as drafts: my next issue, a welcome sequence, lead magnet delivery, re-engagement and a share ask.
3. Send me a test of every email.
4. Ask me before anything goes live, before you change DNS and before you import contacts.

Paste it into Claude, ChatGPT, Cursor or Codex.On your phone? Email it to yourself

Set up your issue and these four flows.

Start with the issue, then build the four flows in this order. If you already have a welcome email, your agent checks what exists and builds only what is missing.

  1. 01

    The issue, built from your posts

    Carry what you published this week to your list, in the same shape every time.

    1. Starts whenYou ask for this week’s issue, ahead of send day
    2. IfNew posts since the last issue: your agent reads them
    3. IfNothing new this week: it draws on your archive
    4. WaitUntil you fix the voice and approve it
    5. Stops whenIt is scheduled for your fixed day and time

    4.10%click rate for media senders, industry median

    This Sunday
    Second Rise
    Issue 48

    Why your loaf
    spreads flat.

    It is almost always the shaping. The fix, in four photos.

    • A rye that forgives a late start
    • Can you freeze a starter? Yes
    • Podcast: a miller on fresh flour
    Read the full post
    Next Sunday
    Second Rise
    Issue 49

    A baguette
    for beginners.

    Three folds, one overnight rest, and the oven you already own.

    • Steam without a Dutch oven
    • What 75% hydration feels like
    • Your loaves from last week
    Reply with your first try
    A week with no new post
    Second Rise
    Issue 50 · From the archive

    The loaf we
    bake every week.

    Nothing new this week, so here is the recipe readers save most.

    • Five flours, tested side by side
    • How to read a crumb
    • Scoring patterns that open up
    Read the recipe
  2. 02

    Newsletter welcome sequence

    Turn a new subscriber into a reader who clicks and replies.

    1. Starts whenSomeone subscribes
    2. Wait2 days
    3. Wait2 days
    4. Wait3 days
    5. Stops whenThe sequence ends. The regular issue carries on

    16.60%welcome email click rate, industry average

    Right away
    Second Rise
    Welcome

    You’re in.
    One question.

    One bake worth your weekend, every Sunday at 7am. First, what do you bake most? Tap one, or just reply.

    • Sourdough
    • Yeasted loaves
    • Pastry and sweet things
    Day 2
    Second Rise
    Start here

    Three posts for
    sourdough people.

    • Our everyday country loaf
    • Shaping, in four photos
    • A starter that survives a holiday
    Start with the loaf
    Day 4
    Second Rise
    Who writes this

    Hello from
    the bench.

    I’m Nell. I burned a loaf a week for a year so you don’t have to. What are you stuck on? Hit reply and tell me.

    A floured wooden bench with a dough scraper, a cane proofing basket and a linen cloth.Replies come straight to Nell
  3. 03

    Lead magnet delivery

    Deliver the guide they asked for, to an address you know is real.

    1. Starts whenSomeone requests your guide, template or checklist
    2. IfNo click in 2 days: one reminder, then stop
    3. Wait2 days after they confirm
    4. Stops whenConfirmed readers move into the welcome sequence
    Right away
    Second Rise
    One step left

    Confirm, and
    it’s yours.

    The starter schedule: one page for the fridge door.

    A glass jar of sourdough starter with a rubber band marking its level.Confirm and download
    2 days after confirming
    Second Rise
    Try this first

    Feed it tonight.
    Bake on Saturday.

    The schedule works backward from when you want bread.

    Thursday, 9pm
    Feed
    Friday, 8am
    Mix
    Saturday, 9am
    Bake
    Open your schedule
  4. 04

    Re-engagement, then sunset

    Give quiet subscribers a reason to click, then stop emailing the rest.

    1. Starts whenNo click for 90 days
    2. Wait4 days
    3. Wait4 days
    4. Stops whenAny click or reply. Everyone else is sunset
    Day 90
    Second Rise
    It’s been a while

    Three bakes
    you missed.

    A beginner’s baguette, a forgiving rye and the fix for flat loaves.

    Thick slices of sourdough showing an open crumb, beside a dish of butter.Pick one for Saturday
    Day 94
    Second Rise
    One question

    What should
    we bake next?

    Reply with one word, like rye or bagels. We read every answer.

    Just hit reply
    Day 98
    Second Rise

    Last one,
    unless you say.

    Tap below to keep Sundays coming. If we don’t hear from you, this is our last email.

    Keep me on the list
  5. 05

    Share ask

    Ask your engaged readers to bring one more.

    1. Starts whenA reader for 30 days who clicked this month
    2. IfYour tool has a referral program: add their link
    3. Stops whenOne ask per reader, no more than once a quarter
    Day 30
    Second Rise
    A small favor

    Know someone
    with a starter?

    Second Rise grows one forwarded email at a time. Send this to one person who bakes.

    A scored sourdough loaf with a dark crust on a wooden board.Forward this email

Benchmarks: MailerLite email benchmarks, 2025; GetResponse email benchmarks, 2023.

Then send it on the same day every week.

Put the day and time on your sign-up form and keep it. Each week, ask your agent for the next issue and it drafts one from your new posts. You fix the voice and approve it.

How to run it.

  1. 1

    Copy the prompt

    Paste it into Claude or ChatGPT. Your agent reads your site and latest posts first and asks only what it cannot find.

  2. 2

    See your first issue built

    It confirms your send day in one message, then drafts your next issue and the four flows.

  3. 3

    Review, test, go live

    Your agent sends you a test of every email and switches on only what you approve.

Set up with Nitrosend

Your agent connects Nitrosend, picks up your look and tone from your site, and reads your latest posts each time it drafts an issue. You paste one sign-up form into your site.

Start free Free to start: 5,000 emails up front, then 500 free every month. No card needed.
  • New sign-ups from the form go straight into the welcome sequence
  • A reader’s reply can start a flow or stop one
  • Unlimited contacts. You pay for what you send

What your agent reads.

The skill is a plain text file you can read before you run it.

Read the skill file
skills/content.mdplain text
  1. One message to confirm your send day and lead magnet
  2. The 1-3-1 issue and four flows, with the job of every email
  3. A test of every email and every link
  4. A go-live checklist: your sending domain, your subscribers and your yes

The numbers to measure against.

Judge content marketing email on clicks and replies, because mail privacy features inflate opens. The plan on this page comes from the Email Marketing Bible, the open-source email skill we maintain: 908 sources, 49 practitioners and 19 industry playbooks. Read the Email Marketing Bible.

  • 88.9%of recorded clicks in publisher email were labeled bot-drivenOmeda Email Engagement Report, Q2 2026
  • 1.04%unique click rate for publishers once bots are filtered outOmeda Email Engagement Report, Q2 2026
  • 0.1%is the spam complaint rate Gmail tells senders to stay underGoogle email sender guidelines, 2026
  • Send every week, and do not skip one because you are unsure what to write.

    Liz Wilcox, email marketing strategist
  • No single playbook fits every newsletter, but rules exist for building the best version of yours.

    Dan Oshinsky, Inbox Collective
  • Email at least weekly, because a monthly newsletter is a sure route to being forgotten.

    Ian Brodie, author of Email Persuasion

From the team behind Sendicate and SmartrMail.

We’ve built a newsletter platform before. Ed led Sendicate, a design-led newsletter platform with 28,000 users. George and Ed then co-founded SmartrMail, with Kam as CTO, and it sent 6 billion emails before Relay Commerce acquired it in 2022.

Customers & Platforms

  • Cursor: Nitrosend plugin in the Cursor Marketplace
  • Create Academy
  • OpenAI: Nitrosend plugin for ChatGPT and Codex
  • Elita
  • Anthropic: Nitrosend is in the Claude connector directory
  • Matilda Stitch Co
  • Vercel: Nitrosend connects natively in v0
  • Conversion Factory
  • Nitrosend is a registered SpaceX Super Intelligence Marketplace Partner
  • Evatto
  • Available in AWS Marketplace: Nitrosend is listed on AWS Marketplace
  • Royals Hair
  • Basestack
  • Hill Speed Group
  • Bartley Legal
  • Global Flourishing Study
  • Grow Brave Studios
  • HapaWire

The Best AI Email Marketing Tool.

“It’s definitely better than copy pasting into beehiiv.”

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“I migrated from MailerLite because I didn’t want another dashboard, and the drag-and-drop builder was so tacky. I just set it up once, and now Claude knows which template to use. My emails are 90% created automatically now. It saves me time.”

Go-to-market for Shopify appsOhad Michaeli, Consultant

“I’m 68 years old. And this kind of assistance is not something I ever dreamed of.”

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Krishna Agrawal@Krishnasagrawal

We spent years learning Mailchimp, Klaviyo, ActiveCampaign, HubSpot.

Now people are just typing: “Launch my newsletter.” And the entire workflow happens automatically.

Software is becoming a conversation.

Robert Scoble@Scobleizer

Founders that do email campaigns, this one is for you.

Have a project to market my AI news site and this is perfect for that.

Verified UserComputer Games
10x Better Campaigns with Straightforward Integration and a Breeze-to-Use Email Builder

The campaigns I’ve built with this are easily 10x better than what I would have created on my own, even using AI. It just seems to know what to do and then actually does it.

“Just being able to say what you want and have it happen is quite a shift.”

Grow Brave StudiosJacqueline du Plessis, Workshop host
Chidanand Tripathi@thetripathi58

The moment I have to open an email builder, I lose all motivation. Nitrosend skips that entire process.

Just describe what you want, Claude builds it, and it’s ready to send.

“I don’t need to be in Nitrosend. I can just have a conversation through Claude.”

My Speaking ScoreJohn Healy, Founder
Hailey MasonCo-Founder & CEO at Evatto

It’s so bloody good! EDMs were the bane of my existence before this!

“Creating drag and drop emails was so clunky. I love that I can just use Claude to create emails with Nitrosend.”

ElitaPaloma, Founder
Verified UserInformation Technology and Services
Speeds Up Email Creation with AI Ease

I really like Nitrosend for its speed; going from zero to setting up emails is crazy quick.

Customer reviews

Questions people ask.

What should a newsletter set up after the welcome email?

Five things, in this order: the regular issue built from your posts, a welcome sequence with one segmenting question, lead magnet delivery with double opt-in, re-engagement followed by a sunset, and a share ask. The issue comes first because it reaches your whole list on your next send day. The other four make every issue land better.

Can Claude or ChatGPT turn my blog posts into a newsletter?

Yes. Paste the prompt on this page into Claude or ChatGPT. It reads a short skill file and your latest posts, then drafts the issue in a fixed structure: one main story, three short items and one ask. It sends you a test, and you fix the voice before anything goes out.

Do I have to switch from beehiiv, Kit, Substack or Mailchimp?

Not all at once. Your agent drafts your next issue and the four flows in Nitrosend, and nothing sends until you approve it. When you are ready, it brings your subscribers across with their unsubscribes, after your yes, and you send from Nitrosend from then on.

Will my agent send anything without asking me?

The prompt tells it to build drafts, send tests only to you, and ask before anything goes live, before DNS changes and before importing contacts. For a hard stop on top of that, turn on Safe Mode in Nitrosend and every send waits for your approval.

How long should a newsletter welcome sequence be?

Four to six emails over two weeks. Four go out in the first week: right away, then on days 2, 4 and 7. Email one delivers what the sign-up form promised and asks one question that segments readers. The next ones send your best posts for their answer, say who writes the newsletter, and make one soft ask. Add a fifth and sixth on days 10 and 14 if you have more to send. In GetResponse’s benchmarks, welcome emails are clicked at 16.60%, against 3.25% for all email.

What does it cost?

Free to start: 5,000 emails up front, then 500 free every month. No card needed. Contacts are unlimited on every plan, so a growing list costs nothing to store. You pay for what you send. Starter is $20 a month for 20,000 emails.

Draft your next issue from posts you already wrote.

Create your account and paste the prompt into the agent you already use. It builds drafts, and you approve what goes out.

Start free
Free to start: 5,000 emails up front, then 500 free every month. No card needed.