Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
protectedharbor.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-20 23:59:01 UTC · ↺ Refresh
MX Hostnames
- protectedharbor-com-tls20.mxthunder.com
- protectedharbor-com-tls30.mxthunder.com
- protectedharbor-com-tls40.mxthunder.com
- protectedharbor-com-tls10.mxthunder.com
MX Priorities
No priority data.
A / AAAA Records
- 66.246.117.5
Mail Server IPs
No IPs resolved.
SOA Record
No SOA record found.
Nameservers (NS)
ns1.protectedharbor.com
ns2.protectedharbor.com
SPF Record
✓ Soft Fail (~all)
v=spf1 a:mail.protectedharbor.com a:mail.technologyoptimizers.com include:spf.smtp2go.com include:spf.sendinblue.com include:one.zoho.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]!10m;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
mail._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
5 records- SPFv=spf1 a:mail.protectedharbor.com a:mail.technologyoptimizers.com include:spf.smtp2go.com include:spf.sendinblue.com include:one.zoho.com ~all
- apple-domain-verification=8UITLqAOfaTl8J3t
- google-site-verification=Eosj6bwHcauzJluHQE9k1NXGVMV0htITww_psKSfvjM
- Sendinblue-code:788ed43e385dd380aad0a992803f3966
- MS=ms75054912
Full email verification for protectedharbor.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits