Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
frontierinvest.com
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 11:17:51 UTC · ↺ Refresh
MX Hostnames
- mxa-004d7601.gslb.pphosted.com
- mxb-004d7601.gslb.pphosted.com
MX Priorities
- mxb-004d7601.gslb.pphosted.com: 10
- mxa-004d7601.gslb.pphosted.com: 10
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 205.220.181.66 ↩ mx0b-004d7601.pphosted.com
SOA Record
Raw SOA
ns-1439.awsdns-51.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1439.awsdns-51.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-150.awsdns-18.com
ns-1713.awsdns-22.co.uk
ns-679.awsdns-20.net
ns-1439.awsdns-51.org
SPF Record
✓ Strict (-all)
v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com -all
📊 DNS lookups: 1/10
✓ 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
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- box-domain-verification=bcc2674fde416e6c433c79fbb9cf7142c5736ffd140b6b979b2526c5769847f3
- google-site-verification=_jFhQZELGa_WEWldRJR553hOrwrfnJU_Ga4KLXfhPD0
- SPFv=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com -all
- MS=ms80543466
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