Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
coker.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-24 05:04:57 UTC · ↺ Refresh
MX Hostnames
- coker-com.mail.protection.outlook.com
MX Priorities
- coker-com.mail.protection.outlook.com: 0
A / AAAA Records
- 74.207.236.19 ↩ 74-207-236-19.ip.linodeusercontent.com
Mail Server IPs
- 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
- 52.101.9.24 ↩ mail-bl2pr02cu00400.inbound.protection.outlook.com
- 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
- 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
- 2a01:111:f403:f804::3 ↩ mail-co1pr03cu00403.inbound.protection.outlook.com
- 2a01:111:f403:c902::2 ↩ mail-sj0pr03cu01602.inbound.protection.outlook.com
- 2a01:111:f403:f802:: ↩ mail-byapr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:f903:: (no PTR)
SOA Record
Raw SOA
ns19.worldnic.com namehost.worldnic.com 125082513 10800 3600 604800 3600
Primary NS (mname)
ns19.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
125082513
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns20.worldnic.com
ns19.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:66.18.43.114 ip4:64.141.173.12 ip4:207.32.244.186 include:spf.protection.outlook.com include:sendgrid.net include:mailgun.org include:autotask.net -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected];
~ 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
✓ 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
5 records- v89oNwd8F1RwOJNYtV/01KrlRT/ul0yzRiIuI5vY4bxzP2017umUHnzUmuHhQwF2AaEsBWokEhYQ9nu0lCMf+w==
- SPFv=spf1 ip4:66.18.43.114 ip4:64.141.173.12 ip4:207.32.244.186 include:spf.protection.outlook.com include:sendgrid.net include:mailgun.org include:autotask.net -all
- gxc3d9c0yvsc2gy8199b0clpvhrgfd42
- google-site-verification=Ko4FOSclhc3JP2QkT65YKX8cG6YkeeyfCdv0dg9dt5s
- MS=ms10882398
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