Your domain sends email every day.
Do you know who else is?
Check your SPF, DKIM, and DMARC in seconds. Then stay protected with continuous monitoring that catches what you'd miss.
Check your domain's email authentication
Free, instant SPF, DKIM, and DMARC analysis. No signup required.
Free, instant results. No signup required.
Trusted by the founder's own companies
Email authentication is set once and forgotten.
Then things break silently.
You added a new email service 6 months ago and broke your SPF without knowing.
Your DKIM key expired after a DNS migration. Your DMARC is on p=none — anyone can send as your domain right now.
These problems exist for weeks or months before anyone notices. Sendvery catches them the moment they happen.
How it works
Three steps to email authentication peace of mind.
Connect
Add your domain and connect your DMARC report mailbox. Takes 2 minutes.
Monitor
We parse your DMARC reports, monitor DNS records, and track changes continuously.
Act
Get alerts when something changes or breaks. AI explains what happened and how to fix it.
Everything you need for email authentication
8 Free DNS Tools
SPF, DKIM, DMARC, MX, blacklist, and domain health checks. Instant results, no signup.
DMARC Report Parsing
Automatic ingestion and parsing of aggregate reports. Visual pass/fail rates and sender breakdown.
DNS Change Monitoring
Continuous monitoring of SPF, DKIM, and DMARC records. Instant alerts when anything changes.
AI-Powered Insights
Plain-English explanations of your DMARC data. Anomaly detection and remediation guidance.
Your email security, explained
These are the risks hiding in your DNS right now.
SPF Record Checker
Is your SPF record over the 10-lookup limit? Did you leave old includes from services you no longer use?
DKIM Key Checker
Stale 1024-bit keys? Selectors broken after DNS migration? Third-party services publishing weak keys?
DMARC Policy Analyzer
Still on p=none? Your DMARC says "watch but don't block." Attackers can send as your domain right now.
Domain Health Score
Every check shows 'mostly okay.' But combined, your domain scores a D. Find out your real grade.
What's your domain's health grade?
A single score that tells you everything about your email authentication posture.
Free forever if you self-host
Sendvery is open source under AGPL-3.0. Run it on your own server with Docker. All features included, no limits, no phone-home. We have nothing to hide.
Simple, transparent pricing
Start free. Self-host free forever. Scale as you grow.
Self-Hosted
Run on your own infrastructure. All features included.
- Unlimited domains
- All features
- AGPL-3.0 licensed
- Docker image
Free
Get started with 1 domain. No credit card required.
- 1 domain
- DMARC parsing
- Basic email digest
- 30-day retention
Personal
VAT included where applicable
Full monitoring for up to 5 domains.
- Up to 5 domains
- Real-time alerts
- Blacklist monitoring
- 1-year retention
Team
VAT included where applicable
For teams managing many domains.
- Up to 50 domains
- 10 team members
- AI Insights included
- API access
- Unlimited retention
Built for developers who care about infrastructure
All data encrypted at rest. IMAP credentials protected with AES-256-GCM. Your data stays yours.
Frequently asked questions
Yes. All data is encrypted at rest. IMAP credentials are protected with AES-256-GCM encryption. We never store your email content — only DMARC report metadata. Self-hosters keep everything on their own infrastructure.
You point your DMARC aggregate reports to a mailbox (or use our receiving address). Sendvery connects via IMAP, downloads the report attachments (XML files), parses them, and stores the structured data. The raw emails are never stored.
Absolutely. Sendvery is open source under AGPL-3.0. Pull the Docker image, run it on your server, and you get all features with no limits. The hosted version simply saves you the infrastructure work.
MXToolbox is a great diagnostic tool. Sendvery adds continuous monitoring — we watch your DNS records 24/7 and alert you the moment something changes. Plus DMARC report parsing, AI insights in plain English, and a modern interface.
No. The free DNS checker tools work for anyone — just enter your domain. For ongoing monitoring, basic familiarity with DNS is helpful, but our AI insights explain everything in plain English.
Our AI analyzes your DMARC reports and DNS records to produce plain-English summaries, detect anomalies, and suggest remediation steps. Powered by Claude (Anthropic). Available as an add-on for $3.99/mo or included in the Team plan.
Start monitoring your email health today
DMARC report parsing, DNS monitoring, sender inventory, and blacklist checking. Free for 1 domain, no credit card required.
Self-host free forever. Hosted plans from $5.99/mo.