One platform. Every email authentication tool you need.
Start free with 18+ diagnostic tools. Upgrade when you need monitoring, Managed SPF, or multi-domain management.
Free
Diagnose & explore
- Managed domains: 1
- Active Checks: 5
- Health check frequency: Daily
- History retention: 7 days
- Blacklist monitoring: Not included
- Email alerts: 1 address
- Webhook alerts: Not included
- Managed SPF: Not included
- AI-powered explanations: 5/mo
- API access: Not included
- Team seats: 1
- Support: Docs
Basic
Monitor what matters
- Managed domains: 5
- Active Checks: 25
- Health check frequency: Every 6hr
- History retention: 30 days
- Blacklist monitoring: Yes
- Email alerts: Up to 3 addresses
- Webhook alerts: Not included
- Managed SPF: Add-on ($15/domain)
- AI-powered explanations: 50/mo
- API access: Not included
- Team seats: 1
- Support: Email (best effort)
Pro
Manage everything
- Managed domains: 25
- Active Checks: 125
- Health check frequency: Every 30min
- History retention: 90 days
- Blacklist monitoring: Yes
- Email alerts: Up to 5 addresses
- Webhook alerts: Not included
- Managed SPF: Included
- AI-powered explanations: 200/mo
- API access: Yes
- Team seats: 3
- Support: Email (48hr)
Business
Scale with confidence
- Managed domains: 50
- Active Checks: 250
- Health check frequency: Every 5min
- History retention: 1 year
- Blacklist monitoring: Yes
- Email alerts: Up to 10 addresses
- Webhook alerts: Up to 5 endpoints
- Managed SPF: Included
- AI-powered explanations: 500/mo
- API access: Yes
- Team seats: 10
- Support: Priority (24hr)
Enterprise
Custom limits, SLA, dedicated support, and SSO. For organizations with 25+ domains or complex requirements.
Need more? Add +25 active checks for $5/mo on any paid plan.
How mxio Compares
Most email admins piece together 3-4 separate tools. mxio replaces the stack.
| mxio Free | mxio Pro | AutoSPF | MXToolbox | dmarcian | |
|---|---|---|---|---|---|
| Diagnostics | |||||
| SPF / DKIM / DMARC checking | Yes | Yes | No | Yes | Yes |
| MX & DNS record lookup | Yes | Yes | No | Yes | No |
| Domain health reports | Yes | Yes | No | Yes | No |
| Blacklist checking | No | Yes | No | Yes | No |
| Monitoring | |||||
| Continuous health checks | Daily | 30 min | No | Yes | No |
| DNS change detection | Yes | Yes | No | No | No |
| Incident tracking & timeline | No | Yes | No | No | No |
| Email & webhook alerts | Both | ||||
| SPF Management | |||||
| SPF flattening | No | Yes | Yes | No | No |
| Automatic IP updates | No | Yes | Yes | No | No |
| Multi-domain SPF | No | 10 domains | Per-domain pricing | No | No |
| Platform | |||||
| Unified dashboard | Yes | Yes | No | Yes | Yes |
| AI-powered explanations | 5/mo | 200/mo | No | No | No |
| API access | No | Yes | No | Paid add-on | No |
| Team seats | 1 | 3 | No | Yes | Yes |
| Pricing | |||||
| Starting price | $0/mo | $59/mo | $37/domain/mo | $129/mo | $20/mo |
| 10-domain cost | — | $59/mo | $370/mo | $129/mo | $200/mo |
Competitor data from publicly available pricing and feature pages, February 2026.
Calculate Your Savings
See what you'd pay for equivalent coverage with separate tools.
Save $255/mo — that's $3,060/year
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Frequently Asked Questions
Can I change plans later?
Yes. You can upgrade or downgrade at any time. When upgrading, you'll be charged the prorated difference. When downgrading, the remaining credit applies to your next billing cycle.
What happens when I exceed my domain limit?
You won't be able to add new domains until you upgrade or remove existing ones. Your current domains and monitoring continue working normally.
Is there a free trial for paid plans?
Every account starts on the Free plan with full access to basic features. You can upgrade when you need more domains, faster health checks, or Managed SPF.
How does Managed SPF pricing work?
Managed SPF is included at no extra cost on Pro and Business plans. On Basic, it's available as a per-domain add-on at $15/domain/month.
What does Managed SPF do beyond flattening?
SPF flattening solves the 10-lookup limit — that's the urgent problem. But Managed SPF handles your entire SPF lifecycle. You toggle senders on and off in your dashboard instead of editing DNS. Every change is logged with full history. You see a live lookup budget so you always know where you stand. If something goes wrong, rollback is one click. When providers like Google or Microsoft quietly change their SPF includes, we catch it and update your record automatically. You delegate SPF to mxio and stop thinking about it.
How many AI explanations do I get?
Every plan includes AI-powered explanations of your health check results. Free accounts get 5 per month, Basic gets 50, Pro gets 200, and Business gets 500. Your quota resets monthly. Cached explanations for unchanged results don't count against your quota.
Can I cancel anytime?
Yes. There are no long-term contracts. Cancel anytime and your plan continues until the end of the current billing period.