Compare/Alternatives

MxToolbox alternatives

3 tools our write-ups put next to MxToolbox, with starting price, free tier, MCP and API side by side.

MxToolbox from $129/moFree tierAPI

Closest alternatives

See the MxToolbox listing

The short answer

  • Mailreach : MailReach adds warm-up alongside placement tests, which MxToolbox does not offer. From $20/mo
  • Folderly : Folderly targets outbound sales teams with deliverability fixes, while MxToolbox centres on DNS, DMARC and blacklist monitoring. From $79/mo
  • Warmbox : Warmbox warms mailboxes for cold email, a gap MxToolbox leaves for a separate tool. From $15/mo

Why people look past MxToolbox

The jump from free to $129/month is steep, and both paid plans cap you at 5 domains, which a cold email setup with many domains can outgrow. There is no warm-up and inbox placement covers only Google, Yahoo and Outlook.com.

What we noted

  • Paid plans start at $129/month
  • 5 domain cap on both paid plans
  • No warm-up or free trial stated

Not the right fit for

  • Cold email setups spread across more than 5 domains
  • Anyone needing mailbox warm-up
  • Small senders who want cheap paid monitoring

Worth keeping in mind: Its free lookups need no account and check a sending IP against 100+ blacklists in seconds, which is quicker than signing up for a testing tool. Adaptive blacklist monitoring watches every third-party service sending as your domain, not only the IPs you list by hand.

MxToolbox alternatives compared

ToolFree tierFromMCPAPIHead to head
MxToolbox (the one you are on) ✓Yes$129/mo–No✓Yes
Mailreach MailReach adds warm-up alongside placement tests, which MxToolbox does not offer. –No$20/mo–No–NoHead to head
Folderly Folderly targets outbound sales teams with deliverability fixes, while MxToolbox centres on DNS, DMARC and blacklist monitoring. ✓Yes$79/mo–No–NoHead to head
Warmbox Warmbox warms mailboxes for cold email, a gap MxToolbox leaves for a separate tool. –No$15/mo–No–NoHead to head

What each one does differently

Mailreach

$20/mo

Why it comes up: MailReach adds warm-up alongside placement tests, which MxToolbox does not offer.

Stands out: Warmup plus spam tests and blacklist checks in one warmup-first product, a step up from a $15 warmup-only bot.

Watch out: Mailreach does not host your sequences. Instantly and Smartlead already ship warmup, so a separate $20 seat is extra unless you send from Google or Outlook directly.

Best for

  • Cold emailers warming Google Workspace or Microsoft inboxes
  • Agencies that want spam tests next to warmup, not warmup alone
  • Senders on a sequencer that does not include a strong warmup network

Read the Mailreach write-up MxToolbox vs Mailreach

Folderly

$79/mo Free tier

Why it comes up: Folderly targets outbound sales teams with deliverability fixes, while MxToolbox centres on DNS, DMARC and blacklist monitoring.

Stands out: The product is placement and authentication (SPF, DKIM, DMARC, seed-list inbox tests), not a warmup bot and not a sequencer.

Watch out: Folderly does not send your campaigns. You still need Instantly, Smartlead, or Google Workspace as the actual mail server.

Best for

  • Outbound teams whose mail is landing in spam and need placement proof
  • RevOps watching DMARC and inbox placement across many domains
  • Agencies that want a deliverability report to show clients

Read the Folderly write-up MxToolbox vs Folderly

Warmbox

$15/mo

Why it comes up: Warmbox warms mailboxes for cold email, a gap MxToolbox leaves for a separate tool.

Stands out: $15/mo is the cheapest dedicated warmup listing in this set, below Mailreach's $20/mo and well below Folderly's $79/mo monitor.

Watch out: Warmup is not sending. You still need a sequencer. Results take weeks, and a burned domain will not be saved by a $15 plan alone.

Best for

  • New domains that need a warmup network before cold volume
  • Solo senders who want a dedicated warmup tool under $20/mo
  • Agencies warming many client inboxes on a low per-box bill

Read the Warmbox write-up MxToolbox vs Warmbox

Common questions

What is the best MxToolbox alternative?
It depends on what sent you looking. We compare 3 alternatives to MxToolbox: Mailreach, Folderly and Warmbox. Each one's "Why it comes up" line says what it does differently, and the table above shows all 3 on price, free tier, MCP and API.
Is there a free alternative to MxToolbox?
Yes. Folderly carries a free tier on our listing, so you can try the product without a card. Free tiers are capped, so check the limits against your volume before you move a team across.
What is the cheapest MxToolbox alternative?
Of the published starting prices here, Warmbox is lowest at $15/mo. Starting price is the entry plan, not the seat count you will end up on, so read the plan table on each listing.

Keep looking

Back to the MxToolbox write-up Every Deliverability tool we list Search the whole directory

Editorial listings, never paid rankings. Prices checked 4 Nov 2026. Confirm current terms on the vendor site. Spot an error?