The independent Email Health & Recovery platform — for agencies & senders
Compare the best email marketing tools and run a free Email Health Check on any domain — no signup — then get automated DNS & blacklist monitoring, step-by-step recovery guidance, and downloadable co-branded reports for your client domain portfolio.
Agencies & MSPs: monitor every client domain in one place — and get alerted the moment one breaks, before your client notices.
Enter a domain for its Email Health Score — one grade out of 100 across SPF, DKIM, DMARC, MTA-STS, TLS-RPT and BIMI, with the exact fixes ranked.
Free tool from ToolTrusted. Lookups query public DNS; generators run in your browser.
Every score is built from checks we actually run on your domain — nothing guessed:
A free domain trust checker that shows its work: independent and deterministic, the same domain always gets the same Email Health Score — traceable to the exact rule and the evidence behind it.
15 free email tools — no signup
Every check behind the Health Score, plus a free blacklist checker, record generators and fixers — the SPF flattener, BIMI generator and a client-side DMARC (RUA) report parser. Free forever, no account.
Email Health Check
Score your domain out of 100 with impact-ranked fixes.
MX Record Lookup
See the mail servers that receive your email.
SPF Record Lookup
Read your SPF record and check the 10-lookup limit.
DMARC Record Lookup
See your DMARC policy and whether it's enforced.
DKIM Record Lookup
Find and read your DKIM signing keys by selector.
DNS Lookup
Query any A, TXT or NS record for a domain.
Reverse DNS (PTR)
Confirm the PTR record on your sending IP.
Blacklist Checker
Check your mail IPs against Spamhaus, Barracuda & SpamCop.
DNS Propagation
See whether a DNS change has propagated across resolvers.
Email Header Analyzer
Trace an email's path from raw headers — stays in your browser.
SPF Generator
Build a valid SPF record in seconds.
DMARC Generator
Generate a correct DMARC record for your policy.
SPF Flattener
Fix “too many DNS lookups” — resolve includes to ip4:/ip6:.
BIMI Generator
Build a BIMI record for your logo, or check a domain’s.
DMARC Report Parser
Read a DMARC aggregate (RUA) report in your browser.
Your score is true today. Want us to keep watching?
The Health Check and the full report are free forever - no account. But DNS changes, keys rotate and providers migrate, and email breaks silently. Continuous email deliverability monitoring in the Workspace re-checks your domain automatically, tells you the moment something regresses, and remembers exactly what changed. New to the result? See how to read your Email Health Score.
Catch it the day it breaks
Daily re-checks and a break-alert the moment SPF, DKIM, DMARC or your reputation regresses.
See monitoring plans ?Know what changed, and when
A dated timeline of every change, so you can prove what broke, when you fixed it, and whether the fix held.
See monitoring plans ?Fix the right thing first
Impact-ranked fixes with the points each one returns - plus the incident history behind every break.
See monitoring plans ?Not a checker - a continuous intelligence platform
A one-off scan tells you today. ToolTrusted keeps watching, remembers everything, and turns every change into a clear, evidence-backed answer. This is the intelligence layer.
Continuous Monitoring
We re-check your posture on a schedule and catch drift the day it happens.
Timeline & History
A permanent, replayable record of exactly how your domain got here.
Trends & Analytics
MTTR, recurring and flapping issues, and a deterministic reliability verdict.
Incidents
Every issue as a coherent lifecycle - opened, resolved, with its own lessons.
Recommendations
The exact fixes, ranked by impact and explained in plain language.
Benchmarking
How your posture compares to a real 10,000-domain population.
Reports, Status & API
Scheduled reports, public status pages, and your posture as JSON on demand.
Portfolio & Automation
Every domain in one executive view; outbound webhooks fire on every change.
Every verdict is measured, deterministic and explainable - the same inputs give the same answer, traceable to a rule and its evidence. We're independent: we sell no ESP and no fix, so our verdicts have no agenda. See how the platform works →
Blacklist Recovery — a guided way back to the inbox
When one of your mail-server IPs shows up on a blocklist we monitor — Spamhaus ZEN, Barracuda or SpamCop — ToolTrusted gives you a step-by-step delisting action plan and pre-filled removal request templates, so you know exactly what to do instead of guessing. Guidance, not automated delisting: we help you find the cause, remediate, and request delisting. See how recovery works →
Learn the email ecosystem
Guides, reviews and reference on email marketing tools and deliverability - the independent resources behind the platform.
Deliverability
Inbox placement, sender reputation, warm-up, spam filters, and blacklists.
Authentication
SPF, DKIM, DMARC, BIMI and MTA-STS - set up and troubleshooting.
SMTP Services
Amazon SES, Mailgun, SendGrid, Postmark and more - ranked on deliverability.
Email Marketing Tools
Hands-on reviews, comparisons and best-of roundups of email marketing tools.
Verification
List cleaning, spam-score and inbox-placement testing tools.
Security
Stop spoofing and phishing; TLS, encryption and secure delivery.
Email APIs
Transactional and marketing APIs for developers - reviewed and compared.
Email Health Check
Score your domain out of 100 - plus free SPF, DKIM, DMARC & MX tools.
The State of Email Authentication 2026
We measured live DNS for the top 10,000 domains. SPF adoption is 84.5% and 76.6% publish DMARC - but only 54% actually enforce it (DMARC, RFC 7489). Read the full data, methodology and charts.
Read the study ?In-depth reviews & guides
Every email marketing tools review and guide is based on real testing - not a rewritten feature list.
Brevo Review 2026
Our four-week test of the cheap all-rounder - pricing math, deliverability, and the verdict.
Read the review ? Best Tools7 Best Mailchimp Alternatives
Free and paid, ranked by fit: Brevo, MailerLite, Kit, GetResponse and more.
Read the roundup ? Best ToolsBest Email Marketing for Shopify
Seven email marketing tools compared for stores that need revenue-driving automation.
See the picks ? GuideEmail Deliverability Guide 2026
SPF, DKIM, DMARC and a 30-day warm-up plan to stay out of the spam folder.
Read the guide ? GuideMigrate Mailchimp to Brevo
A step-by-step move without losing contacts, automations, or deliverability.
Read the playbook ? ComparisonGetResponse vs Mailchimp
The honest head-to-head - which one quietly costs bloggers hundreds more.
Read the comparison ?Compare popular tools
Two email marketing tools, one clear answer for your use case.
Which wins for bloggers in 2026?
See the comparison ? MailerLiteVSMailchimpSimpler and cheaper - or worth the upgrade?
See the comparison ? ConvertKitVSKitSame tool? The 2026 rebrand, explained.
See the comparison ?MailerLite vs Brevo - full feature matrix
The two best-value email marketing tools, side by side. Scroll the table on mobile - the feature column stays put.
| Feature | MailerLitefrom $15/mo | Brevofrom $9/mo | Kit (ConvertKit)from $39/mo |
|---|---|---|---|
| Starting price | $15/mo | $9/mo | $39/mo |
| Free plan | Up to 250 subs | Unlimited contacts, 300 emails/day | Up to 10,000 subs |
| Best for | Tight budgets & clean design | Big lists, moderate send volume | Creators & newsletters |
| Automation | Good | Excellent | Excellent |
| Deliverability | Strong | Excellent | Strong |
| Our rating | ★ 4.6 | ★ 4.4 | ★ 4.5 |
| Try it | Visit site | Visit site | Visit site |
Why trust ToolTrusted
We measure only what's real, our verdicts are deterministic, and every guide is grounded in the actual email standards - and we sell no ESP and no fix, so nothing is shaded for a payout. See exactly how we test, disclosed in full under the FTC's Endorsement Guides.
Choosing an email marketing platform?
Tell us your list size, budget, and what matters most - get a tested pick in seconds.
Answer three quick questions — get a tested recommendation instantly.
Recommendations come from our hands-on testing and current pricing. Affiliate disclosure.
The tools are free. The platform is what you pay for.
Every diagnostic tool and the complete explained report cost nothing, forever, with no account - that is how you judge whether to trust our measurements. The Workspace is the operational platform: weekly monitoring and break-alerts from $9.99/mo; daily checks, incident history, analytics, benchmarks, reports and the API at $29; white-label and a client portfolio at $49. Cancel anytime, 30-day money-back.