The Free Agari Alternative for Email Authentication

Korpo.pro is the free Agari alternative for comprehensive email authentication checks — SPF, DKIM, DMARC, MX, MTA-STS, TLS-RPT, and BIMI — all in one click.

Check Your Domain Free →

Why choose Korpo.pro over Agari?

✓Free forever — no Agari enterprise license fees
✓7-protocol deliverability audit vs Agaris phishing-defense focus
✓Instant domain checks with no account required
✓Clear 0-100 deliverability score you can share with your team
✓BIMI and MTA-STS support that Agari lacks
✓Developer-friendly REST API for automation

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