Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
krystal.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 04:47:45 UTC · ↺ Refresh
MX Hostnames
- krystal-com.mail.protection.outlook.com
MX Priorities
- krystal-com.mail.protection.outlook.com: 0
A / AAAA Records
- 75.2.60.5 ↩ acd89244c803f7181.awsglobalaccelerator.com
Mail Server IPs
- 52.101.194.15 ↩ mail-ch4pr21cu00107.inbound.protection.outlook.com
- 52.101.41.183 ↩ mail-byapr04cu00307.inbound.protection.outlook.com
- 52.101.10.16 ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
- 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
- 2a01:111:f403:f901::1 ↩ mail-bl0pr02cu00601.inbound.protection.outlook.com
- 2a01:111:f403:c902:: ↩ mail-sj2pr05cu00300.inbound.protection.outlook.com
- 2a01:111:f403:f913::1 ↩ mail-cy5pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c92c::2 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
SOA Record
Raw SOA
ns85.worldnic.com namehost.worldnic.com 125123011 10800 3600 604800 3600
Primary NS (mname)
ns85.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
125123011
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns85.worldnic.com
ns86.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 include:sparkpostmail.com include:spf.protection.outlook.com ~all include:mail.zendesk.com ?all include:spf.ess.barracudanetworks.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; rf=afrf; pct=100; ri=86400
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ 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- 8fNa/VtuGZKB6Tn5xctvESfMUhuIvZ2jQkdfN/al+Ts0XFZKMQPH9FXrCGJnbp6xGsz+ZyXPoISNXoCk0d9bxw==
- BPL=2152031
- SPFv=spf1 include:sparkpostmail.com include:spf.protection.outlook.com ~all include:mail.zendesk.com ?all include:spf.ess.barracudanetworks.com -all
Full email verification for krystal.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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