Emailable vs Mails.so (2026): which should you pick?

Pick Emailable if

• Fits if you want list checks and placement reports on one credit balance
• Works for adding a check to sign-up forms without writing code

Look elsewhere if

• Tight if you only need a few hundred checks, as the smallest pack is 5,000 credits for $38
• Pricey if you run lots of placement tests, at 100 credits a report
• Not for you if you need warm-up or DMARC management, as the reports only point out authentication errors
• Watch out: more than 1 million credits means a price from sales

Pick Mails.so if

• Fits if you want a flat monthly price instead of buying packs
• Works for people who also want an email finder

Look elsewhere if

• Watch out: the 90% first-month discount lasts one month, then the plan renews in full
• Skip it if you want a free plan, since it's 50 credits once
• Pricey if you validate small amounts, as plans start at €48 a month
• Watch out: prices were read in euros and the dollar price is unconfirmed

Emailable

• The smallest purchase is 5,000 credits, more than some rivals' entry packs.
• Inbox reports cost 100 credits each, so placement testing uses up a balance fast.
• There are no warm-up or DMARC management tools; reports only point out authentication errors.

Mails.so

• Prices were read in euros; a US dollar view could not be read, so the dollar price is unconfirmed.
• The 90% first-month discount applies to the first month only; the plan then renews at full price.
• The free allowance is a one-time 50 credits, not a monthly free plan.
• Only the three paid plans were listed; there is no separate pay-as-you-go pack on the page.

Emailable

Bulk verification

Upload a list and get each address checked; the vendor says 10,000 addresses usually finish in under 3 minutes. Duplicates and unknown results are refunded.

API and widget

Verify addresses from your own code, or add a widget that checks them as they are typed into a form, at one credit each.

Inbox reports

Add Emailable's seed list to a send to get a report on inbox placement, spam score, authentication errors and broken links, for 100 credits each.

Blacklist monitoring

Watches your IPs and domains on more than 120 real-time blacklists and emails you when one is listed, at 5 credits per check.

Integrations

Direct connections to email, CRM and form tools such as Mailchimp, HubSpot, Klaviyo and Pipedrive, plus more through Make and Zapier.

Mails.so

List validation

Upload a list to check its addresses, or paste single addresses into the checker on the homepage.

Validation API

Every paid plan includes API access, for checking addresses at signup or inside other software.

Email finder

An email finder is included on all three paid plans.

Mailchimp and HubSpot integrations

Listed on every paid plan for cleaning lists held in those platforms.

Top-ups

Extra validations can be bought at any time on Pro and Business at a stated per-validation rate.

Emailable

• Pay-As-You-Go$38

  one-time for 5,000 credits

  The minimum purchase; credits never expire. Bulk rates: $60 for 10,000, $420 for 100,000 and $2,100 for 1 million.

• Monthly$32.30

  per month for 5,000 credits

  A credits subscription at 15% below pay-as-you-go at every volume; unused credits roll over and it can be cancelled anytime.

• EnterpriseCustom

  More than 1 million credits, priced by sales.

Mails.so

• Pro€48

  per month for 10,000 validations

  First month €4.80 (90% off). 5 concurrent validations; top-ups at €0.005 per validation.

• Business€98

  per month for 50,000 validations

  First month €9.80 (90% off). 5 concurrent validations; top-ups at €0.002 per validation.

• Unlimited€498

  per month for unlimited validations

  First month €49.80 (90% off). 10 concurrent validations.

Emailable

• Other savings

  Save 15% with a credits subscription

  A monthly credits subscription costs 15% less than buying the same credits pay-as-you-go: 5,000 credits are $32.30 a month against $38.

Mails.so

• Other savings

  90% off the first month

  The homepage shows each paid plan at 90% off for the first month, then at full price. No end date is shown.