Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
chrisoma.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 05:46:11 UTC · ↺ Refresh
MX Hostnames
- chrisoma-com.mail.protection.outlook.com
- mx.gtmc.ispn.net
MX Priorities
- mx.gtmc.ispn.net: 10
- chrisoma-com.mail.protection.outlook.com: 0
A / AAAA Records
- 151.101.194.159 (no PTR)
Mail Server IPs
- 64.35.208.73 ↩ mx.gtmc.ispn.net
- 52.101.8.34 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
- 52.101.194.4 ↩ mail-ch4pr04cu00104.inbound.protection.outlook.com
- 52.101.9.20 ↩ mail-bl0pr02cu00604.inbound.protection.outlook.com
- 52.101.10.14 ↩ mail-bn6pr04cu00206.inbound.protection.outlook.com
- 2a01:111:f403:c91d::a ↩ mail-co1pr21cu00202.inbound.protection.outlook.com
- 2a01:111:f403:c931:: ↩ mail-sn1pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c922::1 ↩ mail-bl0pr05cu00501.inbound.protection.outlook.com
- 2a01:111:f403:f802:: ↩ mail-byapr05cu00400.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.fatcow.com dnsadmin.fatcow.com 2005021541 10800 3600 604800 86400
Primary NS (mname)
ns1.fatcow.com
Admin Email (rname)
dnsadmin@fatcow.com
Serial
2005021541
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
ns1.fatcow.com
ns2.fatcow.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 3 found
dkim._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: dkim
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 include:spf.protection.outlook.com -all
- MS=ms22598226
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