Domain Overview
DNS: ✓ 20d ago
Checker: ✓ 20d ago
cristalstandards.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-21 18:51:44 UTC · ↺ Refresh
MX Hostnames
- cristalstandards-com.mail.protection.outlook.com
MX Priorities
- cristalstandards-com.mail.protection.outlook.com: 0
A / AAAA Records
- 198.49.23.144 (no PTR)
- 198.185.159.144 (no PTR)
- 198.49.23.145
- 198.185.159.145
Mail Server IPs
- 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
- 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
- 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 52.101.73.28 ↩ mail-am7pr05cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca09::7 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com
- 2a01:111:f403:ca09::20 ↩ mail-as8pr05cu00400.inbound.protection.outlook.com
SOA Record
Raw SOA
dns1.cscdns.net hostmaster.cscdns.net 2020120450 28800 7200 604800 14400
Primary NS (mname)
dns1.cscdns.net
Admin Email (rname)
hostmaster@cscdns.net
Serial
2020120450
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
14400s
Nameservers (NS)
dns2.cscdns.net
dns1.cscdns.net
SPF Record
✓ Strict (-all)
v=spf1 mx a include:spf.protection.outlook.com include:zoho.eu include:sent-via.netsuite.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
✓ 2 found
selector1._domainkey
selector2._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
8 records- DMARCv=DMARC1; p=none; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]; adkim=r; aspf=r
- D9LB592CF1
- MS=ms11481820
- MS=ms39788445
- MS=ms41273102
- MS=ms63552444
- MS=ms75444225
- SPFv=spf1 mx a include:spf.protection.outlook.com include:zoho.eu include:sent-via.netsuite.com -all
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