Reloop vs the competition.
Compare Reloop against leading email service providers. Reloop is open-source email infrastructure with send-based Reloop Cloud pricing and a self-host path.
Cost Efficiency
Send-based hosted pricing from $10/month for 50k emails/month; $0.50 per 1k emails.
Open Source
100% transparent core engine, yours to self-host.
Zero Lock-in
Standard SMTP & REST APIs; bring your own IPs.
Developer Experience
React email templates, TypeScript SDKs, & clean APIs.
Agent Inboxes
Built-in AI agent parsing, webhooks & MCP.
Inbox Placement
SPF, DKIM, and DMARC setup so mail lands where it should.
Inbound Email
Receive at your domain, parse the body, POST it to your app.
Live Events
Opens, clicks, bounces, and complaints as they happen.
Host It Yourself
Same APIs on your machines, or Reloop Cloud. Switch later.
Templates
Visual editor and React email. Variables, no extra tool.
Estimate your monthly email bill.
Transactional email.
API and system-triggered messaging.
Estimated Annual Savings vs Resend
Or self-host Reloop on your own infrastructure for $0 software licensing cost.
Marketing email.
Broadcasts, audiences, and campaigns.
Estimated Annual Savings vs Resend
Reloop charges $0 for contact storage. You only pay for what you actually send ($0.50 / 1k emails).
Feature Comparison
| Capability | Reloop Open Source | Resend | SendGrid | Postmark | AWS SES |
|---|---|---|---|---|---|
Architecture & Open Source | |||||
Open Source Engine Core sending engine codebase | Yes (KumoMTA) | No | No | No | No |
Self-Hosting Capability Deploy on your own K8s / Docker | Yes | No | No | No | No |
Data Sovereignty Complete data control & EU residency | Yes | Cloud only | Cloud only | Cloud only | AWS Regions |
Bring Your Own IPs / SMTP Plug custom sending IPs | Yes | Enterprise only | Pro Plan | Dedicated Plan | Yes |
Unified Stack & Features | |||||
Transactional Email API REST & SMTP relays | Yes | Yes | Yes | Yes | Yes |
Marketing & Broadcast Campaigns Unified contacts & newsletters | Yes | Basic | Separate Add-on | Separate Stream | No |
Inbound AI Agent Inbox Auto-parse & AI agent responses | Yes | No | No | No | No |
React / JSX Email Templates Code-native template render | Yes | Yes | No (HTML/Handlebars) | No (Mustache) | No |
Pricing & Scale Economics | |||||
Free Tier Allowance Free monthly sending credit | 3,000 / mo · 100 / day | 3,000 / mo | 100 / day | 100 / mo | EC2 62k / mo |
Cost per 100,000 Emails Hosted Reloop Growth ($20, 100k included) | $20 | $90.00 | $89.95 | $115.00 | $10.00 + Data |
Dedicated IP Pricing Monthly dedicated IP cost | 1 included (Growth) | $30 / mo | $30 / mo | $50 / mo | $24.95 / mo |
Explore dedicated provider comparisons.
Resend
Reloop vs Resend
Apache 2.0 engine, send-based Reloop Cloud pricing, and a built-in agent inbox.
Mailgun
Reloop vs Mailgun
Unified transactional and marketing email platform with predictable flat pricing.
SendGrid
Reloop vs SendGrid
Modern React/JSX templates and fast developer UI without legacy enterprise clutter.
AWS SES
Reloop vs AWS SES
AWS SES-level pricing with a modern dashboard UI and deliverability controls.
Postmark
Reloop vs Postmark
High deliverability across both transactional and broadcast marketing streams.
Loops
Reloop vs Loops
Native KumoMTA engine with full developer APIs and self-hosting freedom.
Mailchimp
Reloop vs Mailchimp
Pay only for sent email volume without contact list size penalty pricing.
Ready to switch to Reloop?
Apache 2.0 engine, send-based Reloop Cloud pricing, SMTP + REST APIs, and a self-host path. No lock-in.