Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
guardrfid.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 02:56:41 UTC · ↺ Refresh
MX Hostnames
- guardrfid-com.mail.protection.outlook.com
MX Priorities
- guardrfid-com.mail.protection.outlook.com: 0
A / AAAA Records
- 69.31.189.50 (no PTR)
Mail Server IPs
- 52.101.8.44 ↩ mail-dm5pr04cu00104.inbound.protection.outlook.com
- 52.101.194.3 ↩ mail-ch1pr04cu00103.inbound.protection.outlook.com
- 52.101.11.15 ↩ mail-sa9pr02cu00207.inbound.protection.outlook.com
- 52.101.8.46 ↩ mail-dm6pr05cu00406.inbound.protection.outlook.com
- 2a01:111:f403:f802::1 ↩ mail-sj2pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c801::1 ↩ mail-sn1pr0501cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c946::1 ↩ mail-ch1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f90f::1 ↩ mail-sa9pr04cu00201.inbound.protection.outlook.com
SOA Record
Raw SOA
dns1.cscdns.net hostmaster.cscdns.net 2023101912 28800 7200 604800 3600
Primary NS (mname)
dns1.cscdns.net
Admin Email (rname)
hostmaster@cscdns.net
Serial
2023101912
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
dns2.cscdns.net
dns1.cscdns.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:dedicated.mysmtp.com include:one.zoho.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; pct=100; fo=1
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
3 records- google-site-verification=lRUoSn_1EGfWufgzIybdwr99sS4IZuGF6cahfKmnmX4
- SPFv=spf1 include:spf.protection.outlook.com include:dedicated.mysmtp.com include:one.zoho.com -all
- MS=ms30646686
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