Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
shellshack.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-04 05:48:26 UTC · ↺ Refresh
MX Hostnames
- shellshack-com.mail.protection.outlook.com
MX Priorities
- shellshack-com.mail.protection.outlook.com: 0
A / AAAA Records
- 104.19.153.75 (no PTR)
- 104.19.152.75 (no PTR)
Mail Server IPs
- 52.101.10.5 ↩ mail-bn6pr04cu00105.inbound.protection.outlook.com
- 52.101.9.24 ↩ mail-bl2pr02cu00400.inbound.protection.outlook.com
- 52.101.9.5 ↩ mail-mn2pr04cu00205.inbound.protection.outlook.com
- 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
- 2a01:111:f403:f90a::1 ↩ mail-bn8pr03cu00201.inbound.protection.outlook.com
- 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c902::7 ↩ mail-sj0pr02cu00107.inbound.protection.outlook.com
- 2a01:111:f403:f903:: (no PTR)
SOA Record
Raw SOA
ns37.domaincontrol.com dns.jomax.net 2024112801 28800 7200 604800 600
Primary NS (mname)
ns37.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2024112801
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns38.domaincontrol.com
ns37.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=quarantine; fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
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
4 records- SPFv=spf1 include:spf.protection.outlook.com -all
- MS=ms82140634
- utcbhuv889dkarl9egnogtrag7
- google-site-verification=n4_VUjOZQXvlD_EHLTubyn7N8V2YfVWVUN-cFqFTrA0
Full email verification for shellshack.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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