Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
grba.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-31 09:06:29 UTC · ↺ Refresh
MX Hostnames
- grba-com.mail.protection.outlook.com
MX Priorities
- grba-com.mail.protection.outlook.com: 10
A / AAAA Records
- 108.167.141.140 ↩ 108-167-141-140.unifiedlayer.com
Mail Server IPs
- 52.101.8.44 ↩ mail-dm5pr04cu00104.inbound.protection.outlook.com
- 52.101.50.4 ↩ mail-co1pr03cu00404.inbound.protection.outlook.com
- 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
- 52.101.9.24 ↩ mail-bl2pr02cu00400.inbound.protection.outlook.com
- 2a01:111:f403:f902::2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
- 2a01:111:f403:c92c::3 ↩ mail-dm5pr04cu00103.inbound.protection.outlook.com
- 2a01:111:f403:f912:: ↩ mail-cy5pr03cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c936:: ↩ mail-cy1pr05cu00400.inbound.protection.outlook.com
SOA Record
Raw SOA
ns89.worldnic.com namehost.worldnic.com 126012116 10800 3600 604800 3600
Primary NS (mname)
ns89.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126012116
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns89.worldnic.com
ns90.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:71.179.226.11 ip4:108.167.133.26 include:spf.protection.outlook.com include:spf-us.emailsignatures365.com include:cch.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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 ip4:71.179.226.11 ip4:108.167.133.26 include:spf.protection.outlook.com include:spf-us.emailsignatures365.com include:cch.com -all
- have-i-been-pwned-verification=ad977b633dd17dd3f62a5300505167e7
- google-site-verification=P3Fg0R_yjv0LeqNCx_MraHLn4JqCaing-usPLfG-7Fw
- MS=ms83518238
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