Rainmail
NEW A Rainmaker + every channel

The AI that runs your customer communication.

One Rainmaker answers your customers, finds the opportunities in your data, and drafts your outreach — across bulk email, SMS, WhatsApp and verification. Dramatically cheaper than the giants, it lands in the inbox — and it's open to every business: the ones they overcharge, the ones ready to scale, and the ones they turn away.

✅ Send free for 7 days · no card, no DNS setup1 → 100M emails / monthCheaper than the giants
Your Rainmaker · working
Drafted a win-back ready to send
"Hi Maria — we noticed it's been a little while and wanted to say we miss you. Your next oat latte is on us this week. — Bloom Coffee"
Found an opportunity
2 of your best customers have gone quiet — worth $115 in past spend. They normally return every ~7 days; nudge them this week.
Inboxing check
Will inbox · SPF, DKIM, DMARC pass · dedicated IP warm
100+
languages, RTL included
Worldwide
delivery — Africa to the Americas
1 → 100M
emails a month
Card / crypto
pay however you can
Every channel
email · SMS · WhatsApp · OTP
Meet your Rainmaker

Not a tool you operate. Someone who works for you.

Your growth advisor and outreach engine in one: it understands your business, tells you the moves that grow it, and runs the communication that gets you there — growing more senior as you do. Tap any card — try it live.

It understands your whole business — and you can consult it anytime.

It isn't just a sender. It learns your products, prices, customers, patterns and history — and holds a living picture of how your business actually runs. So you can ask it anything, and it advises you from your data — like the sharpest employee you've ever had, one who never forgets.

💡 "Which customers should I focus on this month?"
💡 "Why are Tuesdays slow — and how do I fix it?"
💡 "What should I restock, and when?"
💡 "Who's about to leave, and what do I say?"

It answers from your real numbers — not generic advice — and the longer it works with you, the more it knows. That accumulated understanding is exactly why it can't be swapped out.

🛡️ You're always in control — autonomy is opt-in, off by default. The Rainmaker recommends and you approve each move with one tap. Only if you switch on autopilot (and set its limits) does it send on its own — and you can switch it off anytime. And if you keep passing on a move it recommends, it simply asks whether to handle that kind for you from then on — never assuming. The decision is always yours.

Answers your customers

Replies as your business, around the clock, so no message ever goes cold.

Live — you’re a customer texting Bella’s Bakery 🥐. Ask anything:

Finds the opportunities

Reads your own data and surfaces the moves worth money — the regular slipping away, the reorder that's due, the quiet day to fill.

Example — a week of a shop’s data, ranked by money on the table:

Drafts your outreach

Writes the right message to the right customer at the right moment. You approve, it sends.

Live — watch it write a win-back text for a regular who’s gone quiet:
Email SMS WhatsApp Verification / OTP
Who it's for

Built for everyone the giants overcharge, underserve, or turn away.

Paying Twilio or Mailchimp a fortune? Scaling fast and want one AI to run every channel? New, foreign, or "high-risk" and tired of getting rejected? Rainmail says yes to all of it — for far less, in 100+ languages, by card or crypto, from one message to a hundred million a month.

Cheaper than the giants
One AI across every channel
Card or crypto
Yes where they say no
Rainmail vs. the incumbents

One platform that does what four of theirs can't.

SendGrid does email. Twilio does texts — if you can code. Mailchimp does marketing. Rainmail does all of it, with a Rainmaker that runs it, for less.

Feature🌧 RainmailAmazon SESSendGridTwilioMailchimp
Price — what you actually pay
Email — 1,000,000 / month$127~$125~$249via SendGrid~$300+
Verification / OTP — each$0.022$0.05
Text / SMS — each, no code$0.022code + fees
Plans start at$8/mousage only$19.95/mousage only$13/mo
All your channels
Email that lands in the inboxraw APIvia SendGrid
SMS · WhatsApp · verificationadd-on
Everything in ONE platform
The Rainmaker — where we stand alone
AI answers customers & drafts outreachbasic
Finds opportunities in your data
Works with no developer✗ raw APIpartly
Access
Pay by card or crypto
Welcomes new / foreign / "high-risk"often suspendsoften rejectsoften rejectsoften rejects
Two products, one platform

Bulk email. Mass messaging. Pick one, or both.

Use Rainmail for high-volume email, for verification & SMS at scale, or both — one login, one bill, always under the incumbents.

📧

Bulk Email

Send 1 to 100 million emails a month — with your AI Rainmaker included. It lands in the inbox, not spam.

From $29/mo
  • 50,000 → 1,000,000+ emails / month
  • Rainmaker answers, finds opportunities & drafts
  • Managed deliverability, dedicated IP
1,000,000 emails / month
Rainmail $127 · Amazon SES ~$125 · SendGrid ~$249 · Mailchimp ~$300+
See email plans & slider →
💬

Mass Messaging & Verification

One-time passcodes, verification codes, SMS & WhatsApp on carrier-registered routes — compliant, and always under Twilio.

From $0.022/message
  • OTP, verification, SMS & WhatsApp at scale
  • $0.022 → $0.017 · Twilio Verify is $0.05
  • 10DLC compliant · pay as you send
1,000,000 verifications / month
Rainmail $17,200 · Twilio ~$50,000 — over 6× more
See messaging plans & slider →
Try it now

Will your email land? Find out before you send.

Gmail and Yahoo grade every sender in secret. Rainmail runs the same checks and gives you one honest verdict — with the exact fix.

Give your business a Rainmaker.

Bulk email that lands, mass messaging at scale, and an AI that works your outreach for you.