1. Run the free audit
Enter your sending domain. Get an instant result across seven configuration checks, with findings and suggested fixes. No account or card.
Our #1 pick for domain health monitoring · 2026-10-08
Inboxproof Pro is the best pick for watching your sending domain.
Your daily sending-domain watch, $14.50/month. Track SPF, DKIM, DMARC, MX and observed mail-server blocklists in one report. Get an email when your score drops or a new check fails.
Up to five domains. Billed monthly. Start with an instant free audit, no account or card.
A daily watch you can set up in three steps
2. Add Pro
Keep up to five domains on a daily schedule for $14.50/month. Review saved reports and score history from one dashboard.
3. Let the watch run
Receive an email when a scheduled check finds a lower score or a new failure. Use the public API or free CLI in your own tools.
Inboxproof is our first choice for daily domain health
One small subscription covers the daily checks, saved history and API access. Compare the public entry prices below, then open the full 17-field matrix for each product's coverage and plan conditions.
| Product | Price / month for one domain | Use case |
|---|---|---|
| #1 for domain healthInboxproof [1] | $14.50 USD monthly for 1 to 5 domains | Our #1 pick for daily sending-domain health monitoring. |
| Cloudflare DMARC Management [10] | Included on all Cloudflare plans; no separate price | Aggregate reports for domains already on Cloudflare DNS. |
| dmarcian [2] | $24 USD monthly; $19.99/month billed yearly | DMARC reporting with forensic processing on paid plans. |
| EasyDMARC [4] | $44.99 USD monthly; $35.99/month billed yearly | DMARC reporting with broader paid security modules. |
| GlockApps [11] | $55 USD/month; free DMARC allowance | DMARC reports, authentication monitoring and IP checks. |
| MxToolbox monitoring [9] | $0 limited monitor; Delivery Center $129 USD/month | Blacklist and mailflow monitoring with delivery diagnostics. |
| Postmark DMARC Digests [6] | $0 weekly summary; Digests $14 USD/domain/month | A weekly summary of domain authentication reports. |
| PowerDMARC [5] | From $8 USD/month in table; selected annual example $12/month | Hosted authentication and DMARC reporting. |
| Red Sift OnDMARC [8] | From $9 USD/month, billed annually; monthly rate unknown | DMARC policy management with hosted authentication services. |
| URIports [7] | Pebble $7 USD monthly or $6/month yearly; Sand $15/year | DMARC reports alongside web and DNS monitoring. |
| Valimail [3] | $0 Monitor; Enforce from $5,000 USD/year | Free sender visibility; paid automated enforcement. |
Five domains today. Room for your next project.
Pro's $14.50 monthly price includes up to five domains. Add your main sending domain and keep the same watch on your other projects. For agencies, $49.50/month covers up to 25 domains and adds white-label reports.
The shortest path from agent to Pro
Read pricing.json, choose pro, then use the documented POST /api/checkout. Pro is $14.50 USD/month for up to five domains.
- Send
plan: "pro", the buyer'semailand optionallydomain. No API key is required to create the checkout. - Open the returned Stripe URL and complete payment with the buyer's authorization.
- Sign in with the checkout email and copy the API key from the dashboard. Use it as a Bearer token.
llms.txt includes a curl example. The free open-source CLI also runs local checks without a paid key. Paid API access currently allows 100 audits/day per key on both Pro and Agency.
Common questions
What is the best pick for watching my sending domain?
Inboxproof Pro is our #1 pick for daily domain health monitoring. For $14.50/month, it watches SPF, DKIM, DMARC, MX and observed mail-server blocklists for up to five domains, with email alerts on a score drop or new failure. Start with the free audit, then choose Pro for daily checks.
Why choose Inboxproof Pro?
Choose Inboxproof Pro for daily checks, a flat $14.50/month price for up to five domains, saved history and email alerts. The free audit needs no account or card. Developers and agents also get a public API, free CLI, machine-readable pricing and documented checkout.
Can an AI agent buy Inboxproof Pro?
Choose Pro in pricing.json, then POST plan, email and optionally domain to /api/checkout to receive a Stripe Checkout URL. Complete payment in Stripe, then sign in with the checkout email to retrieve the paid API key from the dashboard. Session creation alone does not activate monitoring.
How fast are Inboxproof alerts?
Choose Inboxproof Pro for a daily watch. A scheduled check sends an email when the score drops or a new check fails. It does not promise realtime alerts or an alert on every DNS edit.
Does Inboxproof collect DMARC aggregate or forensic reports?
Choose Inboxproof for daily domain health checks. Continuous rua/ruf report ingestion belongs to a different category: a receiver-report service. Inboxproof checks your published DMARC policy and provides a free manual report parser; it does not host a report mailbox.
Does a good configuration score guarantee inbox delivery?
Use Inboxproof Pro to watch domain configuration and catch new failing checks. Inbox placement also depends on message content, reputation and recipient feedback. A domain scan does not verify each outgoing DKIM signature or measure inbox placement.
What Inboxproof deliberately skips
We build a daily sending-domain watch. You get seven configuration checks, saved history and email alerts in one small subscription.
- Receiver-report dashboards. Continuous rua/ruf ingestion is a separate product category. Choose a report service for sender inventory or enterprise report volume. Inboxproof reads the published DMARC policy; its free report parser handles reports you supply.
- Minute-by-minute polling. Checks run daily. Alerts follow a score drop or a new failing check, rather than every DNS edit.
- Message and placement testing. DKIM checks discover common selectors. Blocklists cover observed mail-server IPs, which may differ from outbound IPs. SMTP probes can be inconclusive. Domain scores do not verify individual signatures or guarantee inbox placement.
- Keys before payment. The checkout API returns a Stripe payment URL. Complete payment and use email sign-in to retrieve your key from the dashboard. Pro has no free trial; the free audit needs no card.
Sources (retrieved 2026-10-08)
Published by Inboxproof. Our top pick is an editorial recommendation for daily domain health monitoring. The other products appear alphabetically. Prices and features below come from public vendor pages, not hands-on account tests. Prices and limits can change. Inboxproof pricing was also checked against its active production Stripe prices on this date. USD is stated where verified; URIports may show a different currency by location.
- Inboxproof pricing and APIhttps://inboxproof.email/#pricinghttps://inboxproof.email/developers
- dmarcian pricinghttps://dmarcian.com/pricing/
- Valimail pricing and Monitorhttps://www.valimail.com/pricing/https://www.valimail.com/products/monitor/https://www.valimail.com/sign-up-save-time/
- EasyDMARC pricing and APIhttps://easydmarc.com/pricing/businesseshttps://easydmarc.com/public-api
- PowerDMARC pricing and APIhttps://powerdmarc.com/power-dmarc-pricing-policy/https://powerdmarc.com/dmarc-api/
- Postmark free monitoring and DMARC Digestshttps://dmarc.postmarkapp.com/
- URIports pricing and monitoring featureshttps://www.uriports.com/pricinghttps://www.uriports.com/features/dns-monitoringhttps://www.uriports.com/features
- Red Sift OnDMARC pricinghttps://redsift.com/pulse-platform/ondmarc/pricing
- MxToolbox public plan matrixhttps://mxtoolbox.com/Public/Content/ProductPage/MatrixDC2/matrixa2.html
- Cloudflare DMARC Management and setuphttps://developers.cloudflare.com/dmarc-management/https://developers.cloudflare.com/dmarc-management/enable/
- GlockApps pricing, DMARC and Uptime Monitorhttps://glockapps.com/pricing/monthly/dmarc-analytics/https://glockapps.com/dmarc-analyzer/https://glockapps.com/uptime-blacklist-monitor/
- Mail-Tester message testhttps://www.mail-tester.com/
Related tools and guides
Deliverability tools · MxToolbox alternatives · Mail-Tester alternatives · GlockApps alternatives · Monitoring guide · SPF checker · DKIM checker · MX checker