Send newsletters your
subscribers actually open
An AI subject line coach that predicts your open rate before you hit send. A drafter that writes the body for you. A rewriter that sharpens what you already have. All in one place, all inside the flow you're already using.
Everything it takes to ship a campaign
Three stages, one product. Create the email, send it properly, then find out what it did.
Know your open rate before you hit send
As you type, a live scorecard grades your subject and preview against length, spam risk, formatting and personalization, then predicts an open rate against a benchmark that becomes your own once you've sent a few campaigns.
- Predicted open rate
- Live score out of 100
- Personal benchmarks
AI that helps you send better email
Five AI features, all inside the campaign builder. The AI helps. You always decide.
Know your open rate before you hit send
As you type your subject line, our coach scores it live out of 100 and predicts an open rate against a benchmark. Length, spam risk, formatting, personalization, preview text — every signal is visible and every suggestion is actionable.
- Live score updates as you type
- Predicted open rate vs. benchmark
- Personal benchmarks after 3 sends
- Quick-win tips, not black-box magic
AI subject lines
Describe your campaign in one sentence and get five subject line options — curiosity, benefit, question, personal, direct. Pick the one that fits or hand it to Improve for another pass.
Improve with AI
Got a subject that's close but not quite right? Improve with AI rewrites both the subject and the preview text three ways, each with its own predicted open rate, so you can pick the strongest option and move on.
AI body drafter
One-line brief in, mobile-friendly HTML out — inline CSS, merge tags already placed where they read naturally, and an unsubscribe footer wired up. Cuts a 30-minute writing task down to a 30-second edit.
Inbox preview text
Preview text is the short line most inboxes show under the subject — and most tools ignore it. We save it with your campaign and render it correctly at the top of the email, so what you write is what your subscribers see.
Three rewrites. Three predicted open rates.
Keep the one you like, discard the others. The AI never changes your work without your click.
The free win most tools leave on the table
Preview text is one of the most under-used levers for open rates. We render it correctly so what you write actually shows up in Gmail, Apple Mail and Outlook.
Six starting points, zero design work
Pick a layout, preview it live, then make it yours. Every template is plain editable HTML with merge tags already in place.
Welcome
Warm intro for new subscribers with a clear next step.
Newsletter
Weekly digest with headline stories and category tags.
Announcement
Bold hero for launches, releases, or big news.
Promotion
Discount code, benefits list, and urgency-driven CTA.
Event invite
Date badge, agenda, and RSVP call-to-action.
Plain text
Personal, conversational — reads like a founder note.
Built for people who send real email
Deliverability, handled
Verified sending domains with guided SPF, DKIM and DMARC setup. Bounce and complaint webhooks keep your list clean without you lifting a finger.
Compliance, built in
One-click unsubscribe headers on every send, a hosted opt-out page, consent metadata on every contact and an automatic suppression list.
AI drafts it. You approve it.
Five subject-line options, a full HTML body, or three rewrites of what you already have — every generation stays a suggestion until you click apply.
The only email tool with a live subject coach
Every other platform gives you a subject-line field and hopes for the best. We show you a live score and predicted open rate as you type — with a benchmark that becomes your own once you've sent a few campaigns.
Predicted open rate, live as you type
AI subject lines from a one-line brief
AI rewrites of any subject on demand
Free trial on every plan
From one sentence to a finished, coached email
Draft the body, generate the subject, rewrite what's close, and score every line against a benchmark that becomes your own — all inside the same builder.
- AI subject coach with predicted open rate
- Five subject-line options from one brief
- Three AI rewrites of any subject, scored
- Full HTML body with merge tags and unsubscribe
- Preview text that lands in the inbox
Hi Ada 👋
Three things worth your
time this week — the
dashboard rewrite.
Everything you need to run your newsletter
No stitching together five tools. Contacts, drafting, sending, deliverability and analytics live in one place — and talk to each other.
Simple pricing that grows with you
Every plan starts with a 7-day free trial. Cancel before it ends and you won't be charged.
For solo creators getting started.
- Up to 500 subscribers
- 1,000 emails/month
- AI subject lines (10/mo)
- Basic analytics
For creators building an audience.
- Up to 10,000 subscribers
- 50,000 emails/month
- Unlimited AI generations
- Advanced analytics
- Scheduled sends
- All 6 templates
- Priority support
For growing businesses.
- Up to 50,000 subscribers
- 250,000 emails/month
- Team seats (5)
- Dedicated IP
- API access
- SLA support
FAQs
Yes. Every plan starts with a 7-day free trial and requires a card up front. Cancel any time before day 7 and you won't be charged a cent.
Yes. Upload a CSV with email plus optional first and last name and we'll import everything at once. Duplicates are skipped and you can track consent metadata per contact.
Not at all. Pick one of six pre-built templates, tweak the copy, hit send. If you do know HTML the raw editor is always available.
Describe your campaign in one sentence and we return five subject-line options or a full HTML body draft. You edit, save, send. There is no separate AI tool to open and no prompt engineering to figure out — it sits inside the campaign builder you're already using.
As you type your subject line and preview text, we score them out of 100 and show a predicted open rate. The score covers length, spam-word risk, formatting, personalization and preview text quality. The benchmark starts as the industry average, then switches to your own account's average after you've sent three campaigns to at least 200 subscribers — so the number gets more personal the longer you use us.
Yes. Hit Improve with AI and we return three rewritten versions of both your subject and preview text, each with its own predicted open rate. Pick the one you like or keep the one you had. The AI never overwrites your work without you saying yes.
We handle SPF, DKIM, and DMARC out of the box, bounce webhooks feed straight into your suppression list, and one-click unsubscribe headers ship on every send. Deliverability is a first-class feature, not an afterthought.
Yes. Cancel from Settings — during the trial you won't be charged, and after that your data stays until the end of the billing period. Downgrade to a smaller plan any time, no phone calls or retention forms.
Anything we haven't covered — deliverability, migrating a list, or whether a plan fits — just ask. A human reads every message.
support@sendmails.aiStart sending better email today
AI subject coach with predicted open rates. AI-drafted content and rewrites. Real deliverability. Analytics that actually help. Free for 7 days.