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MailerCheck review (2026): is it worth $10?

Email list verification with credits that never expire

Free trial · from $10 one-timeDeliverabilityChecked Nov 12, 2026 · graded Nov 12, 2026 by ToolGPA

Black Friday: is there a MailerCheck sale?

MailerCheck, as pictured on mailercheck.com
How MailerCheck presents itself. Image from mailercheck.com.

MailerCheck report card

2.2GPA

Fair · out of 4.0 · graded Nov 12, 2026

Best for pay-as-you-go email list checks

MailerCheck verifies email lists with credits that never expire, at $10 for 1,000, plus a real-time API, Email Insights and Inbox Placement. New accounts get only 10 free credits, and the refund policy covers only the vendor ending the service.

Who MailerCheck is for

  • Fits if you clean a list now and then and want credits that never expire
  • Works for senders who also want an inbox placement check

Who MailerCheck is not for

  • Tight if you want to try it free, as it is 10 credits
  • Skip it if you want smaller packs, since the minimum purchase is 1,000 credits
  • Watch out: Email Insights and Inbox Placement cost 200 credits each and cannot be tried free
  • Watch out: refunds are only given if the vendor ends the service without cause
See the alternatives

Why MailerCheck gets a 2.2

Five grades, each with its reason. The GPA is their average: an A is 4 points, an F is none.

  • CValue for money$10 for 1,000 credits, a little above the $8 middle for one-time prices in the category. Packs fall to $80 for 10,000 and $500 for 100,000, and the page offers no discounts.
  • CFree plan and trialNew accounts get 10 free credits for list verification only. There is no free plan, and Email Insights and Inbox Placement cannot be tried on them.
  • BFeaturesBulk list verification, a real-time API, result categories, Email Insights and Inbox Placement. Nothing in the listing is missing from the core job.
  • CEase of useNo store rating on record. You create an account and upload or connect a list, a few steps.
  • CPlatforms and integrationsWeb and an API. No integrations or apps are listed.

What these grades rest on. Graded from this listing, whose facts were read from MailerCheck's own pages on 12 November 2026. Not based on using the product, and shorter than our full reviews. How we review and grade.

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MailerCheck: 2.2 GPA on ToolGPA

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Where MailerCheck stands among email verification and deliverability tools

MailerCheck's GPA of 2.2 is higher than 12 of the 38 other email verification and deliverability tools we grade, and level with 5.

It stands best on features (B, above 24 of 38) and worst on platforms and integrations (C, above 0).

Each grade against the category

Every bar is all 39 email verification and deliverability tools we grade, cut by the letter each got. MailerCheck’s own letter is outlined.

  • CValue for moneyAbove 5 of 38, level with 19
  • CFree plan and trialAbove 5 of 38, level with 28
  • BFeaturesAbove 24 of 38, level with 14
  • CEase of useAbove 1 of 38, level with 28
  • CPlatforms and integrationsAbove 0 of 38, level with 13

Keep MailerCheck, or make your own?

Keep it

Nothing MailerCheck does is plain enough to make in a weekend. The 4 things listed below take a company.

That makes this kind of software worth paying for, not this one in particular: 21 of the 38 other email verification and deliverability tools grade higher. It costs $10, paid once.

What you could not

  • Checking that an address exists without writing to it.
  • An API that other software can build on.
  • What a company asks for before it lets staff use something: roles and permissions.
  • The depth: we grade its features B, which means it covers the whole job.

What this rests on. MailerCheck’s listing: what it does, where it runs, what it plugs into and what it costs. It is a judgement about the kind of software this is. We have not built a replacement for it, and making your own means looking after it too. How we decide, and every tool’s verdict.

What is MailerCheck?

MailerCheck, made by the team behind MailerLite, verifies email addresses by bulk upload, one at a time, or through a real-time API. Alongside verification it sells two content and deliverability checks, Email Insights and Inbox Placement, which spend the same credits. Everything is paid for with prepaid credits.

Worth knowing

  • There is no free plan: new accounts get only 10 free credits, and the page's slider also lists a 100-credit free step.
  • Purchases start at 1,000 credits; the pricing page says no discounts are offered beyond the bulk rates.
  • The refund policy allows refunds only if the vendor ends the service without cause before the paid period ends.
  • Email Insights and Inbox Placement cannot be tested on the free credits.

Key features

Bulk list verification
Upload a list, then download the cleaned result with safe, risky and harmful addresses separated; duplicates are removed without being charged.
Real-time API
Validates addresses as they are collected, with an autopay option that tops up credits when a balance falls below a set threshold.
Result categories
Reports flag typos, catch-all and role-based addresses, disposable emails and full mailboxes.
Email Insights
Tests email content for spam words, broken links and blocklists before sending; costs 200 credits per test.
Inbox Placement
Predicts whether an email reaches the inbox or the spam folder at mailbox providers including Google, AOL and Yahoo; costs 200 credits per test.

MailerCheck pricing

As of Nov 12, 2026, MailerCheck is a paid product with a free trial, starting at $10 one-time for 1,000 credits.

Starts at
$10 one-time for 1,000 credits
Free plan
None
Free trial
10 free credits for new accounts, usable for email list verification only.
Pay as you go, 1,000 credits$10one-time, for 1,000 credits used as you goMinimum purchase is 1,000 credits. 1 credit verifies 1 email address and credits never expire.
Pay as you go, 10,000 credits$80one-time, for 10,000 credits used as you goPer-credit cost falls with volume: $45 for 5,000, $175 for 25,000, $500 for 100,000 and $2,000 for 1,000,000.

Read from mailercheck.com on Nov 12, 2026. Prices change, so confirm with MailerCheck before you buy.

Pricing in detail

MailerCheck alternatives

Common questions

Does MailerCheck have an Android app?

No Android app was listed when its pages were read on Nov 12, 2026. MailerCheck is listed for Web.

Does MailerCheck have an iPhone app?

No iPhone app was listed when its pages were read on Nov 12, 2026. MailerCheck is listed for Web.

Is MailerCheck open source?

MailerCheck is not described as open source on its own site, as read on Nov 12, 2026.

Does MailerCheck have an API?

Yes. MailerCheck offers a public API, according to its own site.

Sources for this page

The prices, plans, platforms and features above were read from these pages on Nov 12, 2026.