Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
copt.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-21 04:46:29 UTC · ↺ Refresh
MX Hostnames
- copt-com.mail.protection.outlook.com
MX Priorities
- copt-com.mail.protection.outlook.com: 0
A / AAAA Records
- 34.123.8.175 ↩ 175.8.123.34.bc.googleusercontent.com
Mail Server IPs
- 52.101.41.3 ↩ mail-sj2pr05cu00103.inbound.protection.outlook.com
- 52.101.40.0 ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 52.101.9.24 ↩ mail-bl2pr02cu00400.inbound.protection.outlook.com
- 52.101.8.46 ↩ mail-dm6pr05cu00406.inbound.protection.outlook.com
- 2a01:111:f403:c902::3 ↩ mail-sj0pr03cu01703.inbound.protection.outlook.com
- 2a01:111:f403:c946::5 ↩ mail-ch4pr21cu00105.inbound.protection.outlook.com
- 2a01:111:f403:c902::7 ↩ mail-sj0pr02cu00107.inbound.protection.outlook.com
- 2a01:111:f403:f90a::1 ↩ mail-bn8pr03cu00201.inbound.protection.outlook.com
SOA Record
Raw SOA
ns41.worldnic.com namehost.worldnic.com 126030307 10800 3600 604800 3600
Primary NS (mname)
ns41.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126030307
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns41.worldnic.com
ns42.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:e2ma.net include:asp-spf1.yardi.com include:asp-spf2.yardi.com include:servers.mcsv.net include:ipreomail.com ip4:131.239.200.229 ip4:131.239.200.239 ip4:131.239.200.233 ip4:216.197.69.46 ip4:216.197.69.56 ip4:216.30.177.88 ip4:216.30.177.78 ip4:135.84.64.0/20 ip4:208.86.168.0/22 ip4:209.208.226.0/23 ip4:174.128.1.0/24 ip4:174.128.7.0/24 -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; adkim=r; aspf=r; rf=afrf; pct=100; ri=86400
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
k1._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
10 records- docusign=dc45eae5-afd0-4706-adc9-853f8061961d
- miro-verification=9e4206bde588bbbdaad87254336fc2674a4bc1c7
- apple-domain-verification=xF5WzPtRqwZMW0dW
- ciscocidomainverification=59ff2f482256d19b149dec1f1d4372736f89eb42c746617e08dc723cc709ce19
- adobe-sign-verification=d738053db3bcb5a0905ec8f0c9c65517
- detectify-verification=5ffc7fa37f568d30acd1c4206c558f8f
- adobe-idp-site-verification=e1a1848941b236dbafa42b7c7da5bc11a6161158b861b105d9bb24519e92ceb9
- SPFv=spf1 include:spf.protection.outlook.com include:e2ma.net include:asp-spf1.yardi.com include:asp-spf2.yardi.com include:servers.mcsv.net include:ipreomail.com ip4:131.239.200.229 ip4:131.239.200.239 ip4:131.239.200.233 ip4:216.197.69.46 ip4:216.197.69.56 ip4:216.30.177.88 ip4:216.30.177.78 ip4:135.84.64.0/20 ip4:208.86.168.0/22 ip4:209.208.226.0/23 ip4:174.128.1.0/24 ip4:174.128.7.0/24 -all
- docusign=a464de24-ef7f-4e8a-9b53-fa369414b41f
- autodesk-domain-verification=DvyvqQD9Ly4vQHRlIIjS
Full email verification for copt.com
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