Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rustinconcrete.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 21:46:41 UTC · ↺ Refresh
MX Hostnames
- rustinconcrete-com.mail.protection.outlook.com
MX Priorities
- rustinconcrete-com.mail.protection.outlook.com: 30
A / AAAA Records
- 162.159.135.42 (no PTR)
Mail Server IPs
- 40.93.192.1 ↩ mail-dm5pr02cu00201.inbound.protection.outlook.com
- 52.101.11.7 ↩ mail-sa9pr04cu00107.inbound.protection.outlook.com
- 52.101.10.12 ↩ mail-bn1pr21cu00204.inbound.protection.outlook.com
- 52.101.41.21 ↩ mail-sj2pr05cu00305.inbound.protection.outlook.com
- 2a01:111:f403:c801:: ↩ mail-sa9pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f903:: (no PTR)
- 2a01:111:f403:f905::4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
- 2a01:111:f403:c902::3 ↩ mail-sj0pr03cu01703.inbound.protection.outlook.com
SOA Record
Raw SOA
dns1.cscdns.net hostmaster.cscdns.net 2018061820 28800 7200 604800 14400
Primary NS (mname)
dns1.cscdns.net
Admin Email (rname)
hostmaster@cscdns.net
Serial
2018061820
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
14400s
Nameservers (NS)
dns2.cscdns.net
dns1.cscdns.net
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;rua=mailto:[email protected],mailto:[email protected];ruf=mailto:[email protected];fo=1;ri=86400;aspf=r;sp=none
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: none
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- SPFv=spf1 include:spf.protection.outlook.com ~all
- /hmOOlNj3mkeZYIbKG/oHrQvadQjQ4jsAtWNnlFPiwJTmK2SZtk48DG5YaIlzH0sXXhlET6nEVWZBrLP0U+sMg==
- NQsWaj6OGDZFNvM65HSpuoNPsRmhFeXb84OpFwaZwFA8Wqs0K0mx/PIxCbju2csoKAMz3UQIp8kICVwLnGlS7w==
- 0ed1fe018a004ae0805e9345eda67e64ed6c45ea62
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