| What it does | Open-source email infrastructure with automated deliverability
| DMARC monitoring and enforcement platform across 9 email authentication protocols
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| Stage | Not given
| Startup
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| Founded | Not given
| 2025
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| Based in | Not given
| EE
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| Pricing model | Not given
| Freemium
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| Pricing | Free plan: 3,000 emails/month with 100/day limit. Pro: $10/month for 50,000 emails/month with no daily limit. Growth: $20/month for 100,000 emails/month with no daily limit. Enterprise: custom pricing. Overage emails on paid plans: $0.50 per 1,000. Pay-as-you-go Credits: $5 per 10,000 emails ($0.50
| Free plan: 2 domains, 7 protocols. Pro: $29/month for 2 domains, then $15/domain/month (3-10 domains), $10/domain/month (11+ domains). Founding members: $14.50/month for 2 domains, then $7.50/domain/month (3-10), $5/domain/month (11+), locked 24 months with permanent 15% alumni discount. Hosted DNS
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| Key features | - Disposable email detection against ~210,000-provider catalogue
- Role address detection and MX record lookup
- Automated IP warmup with volume ramps
- Email templates and editor
- AI agent integration via MCP server
- SMTP relay with custom domains
- Email validation and list cleaning
- Delivery analytics and open/click tracking
- Spam testing and reputation monitoring
- Developer CLI for terminal access
| - Monitor 9 email authentication protocols including DMARC, SPF, DKIM, BIMI, MTA-STS, TLS-RPT, ARC, DANE, and ARF
- Identify 170+ named senders automatically instead of showing raw IP addresses
- Step-by-step remediation guidance with service-specific fixes for 28+ email services
- Compliance scoring with A-F grades and exportable PDF audit reports
- DMARC policy enforcement workflow from p=none through p=quarantine to p=reject
- Look-alike domain scanner to detect typosquatting and phishing domains
- Anomaly detection with alerts via email, Slack, Teams, or webhooks
- REST API access and 17 MCP tools for AI-powered monitoring
- PCI DSS v4.0.1 and NIS2 compliance evidence generation
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| What makes it different | - No API key required for free temp email checker, rate-limited per IP
- Open source under Apache 2.0 with same code for self-hosted and cloud
- AI-native with MCP integration for Claude, Cursor and other agents
| - 7 core email authentication protocols free; all 9 from Pro tier, while competitors gate basic protocols behind premium plans
- Actionable step-by-step remediation guidance instead of monitoring dashboards alone
- Transparent per-domain pricing published on the website with no hidden quote-based pricing
- RFC-strict implementations with no shortcuts to standards compliance
- Bootstrapped company with no compromise on free tier or data monetization
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 10 ▲ +1 (up) since last check | 28 ▲ +1 (up) since last check |
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| Trust Flow (Majestic) | 9 | 9 |
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| Citation Flow (Majestic) | 22 | 36 |
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| Referring domains (Majestic) | 45 | 303 |
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Reloop
DMARCguard