Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
covllc.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 03:46:03 UTC · ↺ Refresh
MX Hostnames
- covllc-com.mail.protection.outlook.com
MX Priorities
- covllc-com.mail.protection.outlook.com: 0
A / AAAA Records
- 199.60.103.145 (no PTR)
- 199.60.103.45 (no PTR)
Mail Server IPs
- 52.101.41.6 ↩ mail-sj0pr03cu01406.inbound.protection.outlook.com
- 52.101.9.17 (no PTR)
- 52.101.41.180 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 52.101.11.17 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c946::6 ↩ mail-ch5pr02cu00406.inbound.protection.outlook.com
- 2a01:111:f403:f910:: ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 2a01:111:f403:c902::1 ↩ mail-sj2pr05cu00401.inbound.protection.outlook.com
- 2a01:111:f403:f90f::1 ↩ mail-sa9pr04cu00201.inbound.protection.outlook.com
SOA Record
Raw SOA
ns37.worldnic.com namehost.worldnic.com 125121710 10800 3600 604800 3600
Primary NS (mname)
ns37.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
125121710
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns37.worldnic.com
ns38.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com ip4:144.121.11.250 ip4:50.199.227.129 -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
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
3 records- MS=ms59048625
- SPFv=spf1 include:spf.protection.outlook.com ip4:144.121.11.250 ip4:50.199.227.129 -all
- DuxoNwoSKEW5kIqkpCKYAiyq9XzU1vJ8AOff5NjWvAOPTbbcAtPPHpFNTzYo4WvOE23J8FcLZ65ahF7W WLwPKw==
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