MXToolbox Alternative: When to Switch (and When Not To)
MXToolbox is the internet's free toolbox for per-record DNS and blocklist lookups — SPF, DKIM, DMARC, MX and blacklists, checked one record at a time. Veldica audits your domain's email authentication deterministically from public DNS and produces a fix plan. Same domain, different job — this fit guide shows which one you actually need.
Overview
If you are comparing MXToolbox alternatives, it helps to know exactly which job each tool does. MXToolbox's free lookups cover blacklists, SPF, DKIM, DMARC, MX and general DNS problems — one lookup at a time, no account needed. That answers "what does this record say right now?" A free MXToolbox account adds weekly blocklist monitoring for one domain. Veldica runs deterministic audits of your domain's email authentication — SPF, DKIM, DMARC, MX, MTA-STS, TLS-RPT and BIMI — checked against official rules from public DNS, and turns the findings into a prioritized fix plan. That answers "is my domain configured to pass filters and stop spoofing, and what do I fix first?" Per-record lookups and structured audits are different jobs.
The core difference: records vs audit
A lookup shows one record. An audit verifies the whole configuration and ranks what to fix. An SPF record can parse fine while its nested includes silently push you toward the 10-lookup permerror cliff — no single lookup flags that. MXToolbox checks records one at a time; Veldica audits the full authentication stack deterministically against official rules and produces a fix plan with services behind it.
Frequently asked questions
Is Veldica an MXToolbox replacement?
Only if your problem is authentication auditing. If you need free spot checks of blocklists or single records, keep MXToolbox — it remains the best free baseline for that job. If your problem is a full SPF, DKIM and DMARC audit with a fix plan, Veldica is the direct answer.
Does Veldica monitor blocklists?
No. Veldica audits your domain's published authentication configuration against official rules and reports exactly what is misconfigured and how to fix it. It does not run ongoing blocklist monitoring. The result is deterministic: the same domain gets the same audit every time.
Why do teams look beyond MXToolbox?
Because per-record answers do not add up to an audit. A correct-looking SPF record plus a passing DKIM check can still hide interacting failures — nested include chains, alignment mismatches, missing MTA-STS — that only a structured audit catches and ranks. Teams also outgrow the free tier's one-domain weekly monitoring and find the paid jump to delivery-center pricing steep for small senders.
What does Veldica cost?
The email domain trust checker is free with no signup. A structured trust audit starts at $49, and a done-for-you mailbox rescue is $399. No seats, no monthly meter for the audit itself.
Check SPF, DKIM, DMARC, MX and blacklists one record at a time, free with no account. Weekly blocklist monitoring for one domain on the free plan. A great baseline — but a lookup tells you what a record says, not what to do about it.
If your question is "is this domain on a blocklist right now?" or "what does this one record publish?" a per-record lookup is the right tool. Veldica does not do ongoing blocklist monitoring.
If your question is "is my SPF, DKIM and DMARC actually correct, and what do I fix first?" you want fixed-rule audits with a fix plan — free checker, $49 audit, $399 rescue.
Tool comparison
Pick the tool that matches the question you are asking.
Free per-record DNS and blocklist lookups, no account needed; free plan monitors one domain weekly. Paid plans start at $129 per month for delivery-center monitoring. Checks records one at a time — no structured fix plan.
Deterministic SPF, DKIM, DMARC, BIMI, MTA-STS, TLS-RPT audits against official rules from public DNS. Structured findings with a fix plan. Free checker, $49 audit, $399 rescue.
Digging records by hand and reading RFCs. Slow, inconsistent, and easy to miss interacting failures like the SPF 10-lookup limit.
Keep Exploring
Use the Workflow Library to browse more guides, comparisons, and integration examples to continue your evaluation.
See the difference on your own domain — a graded authentication audit for free, no signup.
See why checking protocols one by one leads to missing security gaps.
The most common silent SPF failure — and how to audit lookup depth before senders break.
Find out if authentication is your problem
Run the free checker on your domain. If SPF, DKIM and DMARC are clean, your deliverability problem is somewhere else — and you will know in under a minute.