Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
subzero.com
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 09:31:21 UTC · ↺ Refresh
MX Hostnames
- mxb-000a9203.gslb.pphosted.com
- mxa-000a9203.gslb.pphosted.com
MX Priorities
- mxa-000a9203.gslb.pphosted.com: 10
- mxb-000a9203.gslb.pphosted.com: 10
A / AAAA Records
- 198.51.76.140 (no PTR)
Mail Server IPs
- 148.163.138.83 ↩ mx0b-000a9203.pphosted.com
SOA Record
Raw SOA
ns1.subzero.com domains.subzero.com 929 10800 3600 2419200 900
Primary NS (mname)
ns1.subzero.com
Admin Email (rname)
domains@subzero.com
Serial
929
Refresh
10800s
Retry
3600s
Expire
2419200s
Minimum TTL
900s
Nameservers (NS)
ns1.subzero.com
ns2.subzero.com
SPF Record
✓ Soft Fail (~all)
v=spf1 mx a ip4:198.51.76.1/30 ip4:208.185.229.41/29 ip4:35.80.141.6 ip4:44.229.121.55 ip4:148.59.100.16/28 include:spf.protection.outlook.com include:mktomail.com include:servers.mcsv.net include:mail.nexusdigital.net.au include:spf-000a9203.pphosted.com include:amazonses.com include:tmsmail7.csod.com include:em1899.subzero-wolf.com ~all
📊 DNS lookups: 10/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;rua=mailto:[email protected],mailto:[email protected];ruf=mailto:[email protected],mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 5 found
selector1._domainkey
selector2._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 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
21 records- SPFv=spf1 mx a ip4:198.51.76.1/30 ip4:208.185.229.41/29 ip4:35.80.141.6 ip4:44.229.121.55 ip4:148.59.100.16/28 include:spf.protection.outlook.com include:mktomail.com include:servers.mcsv.net include:mail.nexusdigital.net.au include:spf-000a9203.pphosted.com include:amazonses.com include:tmsmail7.csod.com include:em1899.subzero-wolf.com ~all
- adobe-idp-site-verification=6214428fb370e95ca3bb0d97a24585077f0b4928bdbf8af9cc6363d3ac8715a7
- _xiu0c2251v9vkmugn1pih59w8c9alkx
- MS=ms81815647
- _r6tfcqlfl56wdrywyl179ugad1qq19g
- yahoo-verification-key=jmLZZ9CtTo6HFdy8YmyePsK1Ok9nvABizG1YiB2VcFE=
- d365mktkey=RCdrbdxqSImlUY44EfgykcfEE1hz7lbxGcxKBn0n1eMx
- google-site-verification=heQ96vjeCW5MfVfjopYtMuYqScJzISj_zOsLGXr5XQQ
- anthropic-domain-verification-a2w7ma=vCOcLReaHjOzgZwumuUcx9qe0
- miro-verification=459b01272103e2b244a2b9fe2cced370ebc29e6f
- d365mktkey=S6IajPL42Y7WXuYMQg568LrM4nmztG8rxp2blWwwmhQx
- docusign=78be2d16-8cba-4292-b323-a8949b19a920
- _bx3tzocqnqdrxefncc93dinxtvlcv56
- d365mktkey=W6jHPzxCZAEixGYy1rd2hMSbZpbVp6An2Cx7MMep70kx
- apple-domain-verification=LpcpGSXNQyCniXmu
- jamf-site-verification=m2ftsG8a-RqpWfYLl5dBGw
- hcp-domain-verification=36c7b93bd31ecca03d716b5b01e409048e98ef8e28cd5e093ceea318c138786a
- google-site-verification=83EOQsSwUce-9GCLNhdNZE1cDzPcuWeetyikTX7_SvQ
- google-site-verification=2mlIrnQ9A6Ep8ltFVhGoP7V2qUJ4cU3EqBoZ7FowNvs
- docusign=052259b0-9574-41dd-b2a7-e9511742d0bc
- W1aqa3KgvzWZIJASCbgM/XeYfSqy2IGZAsF1QQMfkKoKygU0SAPJew/HIVCCMuXnK0+cyGxW86F0w1gqj+3wKQ==
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