The Free Mailchimp DMARC and Deliverability Alternative

Korpo.pro is the free alternative to Mailchimps limited authentication tools: check SPF, DKIM, DMARC, MX, MTA-STS, TLS-RPT, and BIMI for any domain in seconds.

Check Your Domain Free →

Why choose Korpo.pro over Mailchimp?

✓Free with no subscriber limits or monthly fees
✓7-protocol deliverability audit vs Mailchimps basic SPF/DKIM setup
✓DMARC policy analysis and recommendations Mailchimp doesnt offer
✓MTA-STS, TLS-RPT, and BIMI coverage Mailchimp lacks entirely
✓Works with any email provider — not just Mailchimp
✓Clear 0-100 score so you know exactly where you stand

7-Point Deliverability Audit

✓

SPF

✓

DKIM

✓

DMARC

✓

MX

✓

MTA-STS

✓

TLS-RPT

✓

BIMI

Try it now — free

Other Alternatives

Mail-Tester Alternative MXToolbox Alternative DMARC Analyzer Alternative DMARC Report Alternative EasyDMARC Alternative Valimail Alternative DMARCLY Alternative Postmark DMARC Alternative Proofpoint Alternative Barracuda Alternative Mimecast Alternative Google Postmaster Tools Alternative dmarcian Alternative PowerDMARC Alternative Trustifi Alternative Red Sift Alternative Agari Alternative ZeroBounce Alternative Mailchimp Alternative SendGrid Alternative Mailgun Alternative IntoDMARC Alternative Validity 250ok Alternative Bouncer Alternative Mailtrap Alternative