Stop paying for
someone else's reputation
Most email platforms send from their servers. When another customer spams, your deliverability drops. Helio is different — you bring your own SES, Mailgun, or SMTP. We provide the intelligence layer that gets you to the inbox.
We don't send your emails. You do.
Other platforms mix your emails with thousands of senders. One spammer ruins it for everyone.
Your domain, your reputation, your rules. We never touch your sending infrastructure.
Switch providers anytime. Your data, contacts, and templates are always yours.
The intelligence layer your emails are missing
Connect your SES, Mailgun, or SMTP in 2 minutes. We handle everything else.
AI-powered content analysis catches spam triggers before you send. Score 0-100 with actionable fixes.
UniqueA+ to F grading of your SPF, DKIM, DMARC, and blacklist status. With one-click fixes.
UniqueAutomated domain warm-up with provider distribution across Gmail, Outlook, Yahoo. Auto-pause on issues.
UniqueDetect your DNS provider automatically. One-click Cloudflare setup. Step-by-step for 12+ providers.
UniqueCreate campaigns with A/B testing, segments, scheduled sending. Full template editor with variables.
Bring Your Own Infrastructure. Connect SES, Mailgun, SMTP, Postmark, or SendGrid. We never touch your IPs.
CoreCSV import, email validation, MX checks, disposable detection, auto-suppression. Keep your list clean.
Real-time webhooks process bounces and complaints. Auto-suppress bad contacts. Protect your reputation.
Invite your team. Role-based access. Switch between multiple projects and teams.
Helio vs. the rest
| Helio | Mailchimp | SendGrid | Raw SES | |
|---|---|---|---|---|
| Your own sending IPs | ✓ | ✕ | ~ | ✓ |
| Your own reputation | ✓ | ✕ | ~ | ✓ |
| Domain warming | ✓ | ✕ | ✕ | ✕ |
| Spam content scanner | ✓ | ~ | ✕ | ✕ |
| Domain health grading | ✓ | ✕ | ✕ | ✕ |
| Auto DNS setup | ✓ | ✕ | ✕ | ✕ |
| Send test emails | ✓ | ✓ | ✓ | ✕ |
| Visual campaign builder | ✓ | ✓ | ✓ | ✕ |
| Team collaboration | ✓ | ✓ | ✓ | ✕ |
| Blacklist monitoring | ✓ | ✕ | ✕ | ✕ |
| No vendor lock-in | ✓ | ✕ | ✕ | ✓ |
| Starting price | $0 | $13/mo | $15/mo | $0 + DIY |
Live in 5 minutes. Seriously.
Connect your email provider
Paste your SES, Mailgun, or SMTP credentials. Encrypted with AES-256. Guided setup with step-by-step instructions for each provider.
We auto-configure your DNS
Helio detects your DNS provider (Cloudflare? GoDaddy? Route53?) and gives you exact records to add — or sets them up automatically.
Import contacts & scan for issues
Upload your CSV. We validate every email, remove disposable addresses, check MX records, and tag your list automatically.
Warm up your domain (auto)
Helio gradually ramps up sending volume across Gmail, Outlook, and Yahoo. Auto-pauses if something looks wrong.
Send campaigns with confidence
Spam scanner checks your content. Domain health grade shows your readiness. Send test email first. Then launch to your full list.