Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
isn.com
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-27 21:58:32 UTC · ↺ Refresh
MX Hostnames
- mxb-003e9401.gslb.pphosted.com
- mxa-003e9401.gslb.pphosted.com
MX Priorities
- mxa-003e9401.gslb.pphosted.com: 10
- mxb-003e9401.gslb.pphosted.com: 10
A / AAAA Records
- 20.22.115.97 (no PTR)
Mail Server IPs
- 205.220.173.124 ↩ mx0b-003e9401.pphosted.com
SOA Record
Raw SOA
a1-12.akam.net hostmaster.isn.com 2026022300 3600 600 604800 300
Primary NS (mname)
a1-12.akam.net
Admin Email (rname)
hostmaster@isn.com
Serial
2026022300
Refresh
3600s
Retry
600s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
a11-67.akam.net
a9-66.akam.net
a22-65.akam.net
a1-12.akam.net
a16-64.akam.net
a4-65.akam.net
SPF Record
✓ Strict (-all)
v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com include:et._spf.pardot.com include:_spf.qualtrics.com include:mg-spf.greenhouse.io include:spf.protection.outlook.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
24 records- vnrssck3r6z8szt7mgg94x4cdd8slrc4
- c3f5jnw926vn7hr50mxhdgm3rr5jvq85
- _oz3uomeea6gibaosf7o9j44xxucqf57
- kv20my5k70f21zqq83yv1zpmr61rttqs
- stripe-verification=7BEA58A401A7559A863DBE4CD08367A61100D2333DC3507BAE89C43AFE4E6714
- apple-domain-verification=L6ikYStnnpqEuB0j
- anthropic-domain-verification-3hwd0g=ZSMRBHcREd8xISjjCsAf8bsAf
- bw=eKwyDwWAhQjtjHpBFsTgDzMwX/vuKGDcvJ67KTdbQvkN
- dz4vp8wr2lgflmtcgmc51rzlspsbbwp8
- 9pczjkgprv1vlnvpy4pzwczplcnhshc2
- SPFv=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com include:et._spf.pardot.com include:_spf.qualtrics.com include:mg-spf.greenhouse.io include:spf.protection.outlook.com -all
- _5n3lvaigqqqw30b58vfxkqw08m8h0az
- cisco-ci-domain-verification=7edc160d7f859fabafc86f11535bb24733b4e1e44a388ea38af79df2d523ca31
- q1c7zkd97z98pwxk5xhczy5hlfxfd3mb
- ZOOM_verify_TAIq3uitOEWguP37lRrWfn
- webexdomainverification.=a3dc28ee-b4ef-47c2-84b8-624dcf2e5e74
- stripe-verification=E92F86E3BFB5C615A31E39B95A1163CFC5B95474928CC51C437AFC67339A514A
- x8w197s738117r00b0s5ggyf7lmzgqfx
- stripe-verification=3DA1AAAA89690D2812FAE08A098707543A44DD5BF0CE79E3CD5A858CE934FFE2
- google-site-verification=ptLt1UQETF3QrvxZ78zweoMpfTd9kn-vhzPXDqHyjf0
- ms-domain-verification=fe266830-92aa-4aa6-8d97-cf42b70faf6d
- zfyl0069mfm1lzghddmhn4kn16fyt7lj
- FdvvdJHS3CJslydrrUoEgrxkV/eNa4pyJaX5gMZY58foxb0rtjqH8vlw4qkS66NIhLhwMdWepaFEuRXU9FSWmA==
- jamf-site-verification=lWzPnJDv32Sg9DUXYVgSUg
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