Growth · alternatives · 2026

24 alternatives to Lume Free Email Tools

Free SPF/DKIM checker, blacklist scanner & header analyzer

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1. 1
   Email Inspect▲9

   Free dmarc, spf & dkim analyzer tools

   Nov 2025 · emailinspect.com · its alternatives →

2. 2
   DMARC Checker▲70

   Verify your DMARC, DKIM, and SPF settings with our free checker. Prevent bad actors from impersonating your domain and improve email deliverability.

   2024 · dmarcchecker.app · its alternatives →

3. 3
   Email Deliverability Toolkit▲9

   9 free tools to keep your email out of spam

   Aug 2026 · truelist.io · its alternatives →

4. 4
   EmailAuth.app▲6

   Email authentication & deliverability checker

   2025 · emailauth.app · its alternatives →

5. 5
   DMARC Checker▲5

   Ensure your emails pass DMARC/DKIM/SPF authentication

   2024 · dmarcchecker.app · its alternatives →

6. 6
   Email Deliverability API & Checker▲2

   Instantly audit SPF, DKIM & DMARC to stop landing in spam.

   Aug 2026 · web-production-80c77.up.railway.app · its alternatives →

7. 7
   FreeMailTools▲2

   Everything you need for email infrastructure

   Jul 2026 · freemailtools.com · its alternatives →

8. 8
   DMARC Digests▲101

   Protect your brand from email scammers.

   2020 · dmarcdigests.com · its alternatives →

9. 9
   Email Posture▲5

   Get alerted the moment your DMARC, SPF, or DKIM breaks

   Jul 2026 · emailposture.com · its alternatives →

10. 10
    Monitor and Implement DMARC▲86

    A free tool to increase your email's deliverability

    2015 · dmarc.postmarkapp.com · its alternatives →

11. 11
    InboxGreen▲1

    Free email deliverability checker for SPF, DKIM & DMARC

    May 2026 · inboxgreen.email · its alternatives →

12. 12
    Folderly Lens ▲107

    Domain health analysis for high performance email campaigns

    Jul 2026 · lens.folderly.com · its alternatives →

13. 13
    Email Spam Checker by Autoklose▲105

    Send spam-free, high-converting emails

    2020 · app.autoklose.com · its alternatives →

14. 14
    DMARCKit▲1

    Free email auth scanner. Stop going to spam.

    Apr 2026 · its alternatives →

15. 15
    PowerDMARC▲57

    Stop hackers from sending emails from your domain with DMARC

    2021 · powerdmarc.com · its alternatives →

16. 16
    Email DNS Check

    Diagnose SPF, DKIM and DMARC errors instantly

    Mar 2026 · its alternatives →

17. 17
    DKIM.pro▲3

    Monitor SPF, DKIM and DMARC before email breaks

    May 2026 · dkim.pro · its alternatives →

18. 18
    OutboundQA▲6

    Catch cold email launch blockers before you send

    Jun 2026 · outboundqa.com · its alternatives →

19. 19
    MailPosture

    Monitor your email security with SPF, DKIM & DMARC

    Aug 2026 · getmailposture.com · its alternatives →

20. 20
    MailMedic ‑ Email Health▲1

    Scan your domain's SPF, DKIM and DMARC in seconds

    Sep 2026 · apps.shopify.com · its alternatives →

21. 21
    Deep Email Validator▲51

    Validates regex, typos, disposable, dns and smtp. Contribute to mfbx9da4/deep-email-validator development by creating an account on GitHub.

    2020 · github.com · its alternatives →

22. 22
    MailTest▲7

    Most tools say DKIM failed. MailTest tells you why

    Apr 2026 · its alternatives →

23. 23
    DNS Lookup & Dig Tool▲4

    Bulk DNS, global propagation & email auth in one click

    Jun 2026 · its alternatives →

24. 24
    eDMARC▲12

    Simplify investigation of every email failure

    Mar 2026 · ivorysec.com · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →