Stop your email from quietly landing in spam.
Sendvery watches your DMARC reports and DNS health 24/7, then tells you in plain English what to fix — before a customer ever tells you the invoice never arrived.
Open source · AGPL-3.0 · 1 domain free forever · Self-hostable
Free, instant results. No signup required.
Protocol chips show the live state for four email-authentication protocols: SPF (Sender Policy Framework), DKIM (DomainKeys Identified Mail), DMARC (Domain-based Message Authentication, Reporting & Conformance), and MX (mail exchange) records.
What Sendvery catches that nobody else does
The silent failure modes that break email authentication weeks before anyone notices.
Key expired after a DNS migration
Your provider rotated DKIM keys but the new selector never landed in DNS. Every transactional email has been silently failing authentication for weeks — Sendvery flags it on the next report.
Record crept over the 10-lookup limit
Each new sender adds an include directive. Once you cross 10 DNS lookups, the entire SPF record is treated as permerror — receivers reject mail without telling you.
Marketing tool added to SPF without DKIM
SPF passes (the IP is authorised) but DKIM is missing (the sender doesn't sign on your behalf). DMARC alignment fails. Mail lands in spam from a "trusted" sender.
Subdomain inherits weaker policy than apex
Your apex domain is on p=reject, but `mail.yourdomain.com` has no DMARC record — it inherits the apex's sp= tag (or `p=none` if absent), opening a spoofing window.
DMARC reports are written for machines. We translate them for you.
Sendvery parses the XML, watches DNS continuously, and gives you one sentence that tells you exactly what to fix.
<record>
<row>
<source_ip>198.2.179.45</source_ip>
<count>42</count>
<policy_evaluated>
<disposition>none</disposition>
<dkim>fail</dkim>
<spf>pass</spf>
</policy_evaluated>
</row>
</record>
A Mailchimp send from your marketing subdomain failed DKIM. SPF alone won't pass alignment — add the Mailchimp selector to fix it.
One letter tells you if your email is at risk.
DMARC reports, DNS health, and AI insights rolled into a single A–F score per domain. No XML, no guesswork.
Everything for one domain in one view
DMARC posture, pass rate, top senders, and recent reports — without leaving the page.
Acme.example shown — your data, your domains.
Three steps to email authentication peace of mind
Point your DMARC reports at Sendvery (or connect a mailbox if you can't change DNS), let us monitor your reports and records, then act on plain-English alerts.
Add your domain. Point DMARC at Sendvery.
Point your DMARC rua= at reports@sendvery.com so email providers send their aggregate reports straight to Sendvery — or connect your own mailbox if you prefer pulling them yourself.
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.
Simple, transparent pricing
Start free. Self-host free forever. Scale as you grow.
Free
Get started with 1 domain. No credit card.
- 1 domain
- 100 reports/mo
- 30-day retention
- DMARC + DNS monitoring
Personal
Billed annually at $59.88
- 5 domains
- 1,000 reports/mo
- 1-year retention
- Blacklist monitoring
- ✨ AI Insights · 50 on-demand/mo
Pro
Billed annually at $239.88
- 20 domains
- 10,000 reports/mo
- 3 team members
- 2-year retention
- API access + webhooks
- ✨ AI Insights · 200 on-demand/mo
Business
Billed annually at $599.88
- 50 domains
- 50,000 reports/mo
- 10 team members
- Unlimited retention
- White-label PDF reports
- ✨ AI Insights · 500 on-demand/mo
Need more? Talk to us about Enterprise →
VAT included where applicable. Prices in USD.
What's your domain's health grade?
A single score that tells you everything about your email authentication posture.
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.
Trusted by the people who actually read DMARC reports
“We sat at p=none for 14 months because nobody could read the XML. Sendvery flagged that our Mailchimp subdomain was sending unsigned the first morning we connected it — we went to p=quarantine three weeks later.”
“Our SPF record was one include away from the 10-lookup limit and we had no idea. Sendvery counted them, named the included domain that was bloating it, and told me which one we no longer needed.”
“After a DNS migration our DKIM selector silently went missing on the marketing subdomain. The weekly digest caught the drop in pass-rate before the next campaign send — we would have burned a Tuesday otherwise.”
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.
Built by one person, in the open
I'm Jan Mikeš. I've spent over ten years building developer-facing infrastructure — most recently as a freelance PHP and Symfony consultant for small Czech product companies. I'm the kind of engineer who reads the RFC before filing the bug.
I built Sendvery because every team I've ever worked with hit the same DMARC wall: nobody on the team can read the XML attachments that land in the reports inbox, nobody has time to learn, and the existing tools cost more per month than the email infrastructure they're supposed to be monitoring. That felt fixable.
Sendvery is a one-person company — when you email support, you reach me directly. I aim to reply within 24 hours on EU business days. The code is on GitHub; issues and feature requests are triaged in public. If you find a bug, open an issue; I'll fix it.
Frequently asked questions
Yes. All data is encrypted at rest. IMAP credentials are encrypted with XChaCha20-Poly1305 via libsodium (the paragonie/halite library). 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 on every paid tier — Personal+AI from $8.99/mo, Pro+AI from $29.99/mo, Business+AI from $69.99/mo (annual billing). Quotas scale with the tier (50 / 200 / 500 on-demand calls per month).
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 $4.99/mo.