Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
atcu.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 10:50:48 UTC · ↺ Refresh
MX Hostnames
- atcu-com.mail.protection.outlook.com
MX Priorities
- atcu-com.mail.protection.outlook.com: 0
A / AAAA Records
- 162.159.130.6 (no PTR)
- 162.159.133.6 (no PTR)
Mail Server IPs
- 52.101.8.34 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
- 52.101.41.21 ↩ mail-sj2pr05cu00305.inbound.protection.outlook.com
- 52.101.8.44 ↩ mail-dm5pr04cu00104.inbound.protection.outlook.com
- 52.101.9.17 (no PTR)
- 2a01:111:f403:c946::4 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:c936:: ↩ mail-cy1pr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:f913::1 ↩ mail-cy5pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f903:: (no PTR)
SOA Record
Raw SOA
ns73.domaincontrol.com dns.jomax.net 2025082902 28800 7200 604800 600
Primary NS (mname)
ns73.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2025082902
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns74.domaincontrol.com
ns73.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:208.72.135.210 include:spf.protection.outlook.com include:spfref.jackhenry.com include:spf.meridianlink.com include:spf.constantcontact.com include:_external.pscu.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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
7 records- docusign=67307737-20b3-49a7-9ce0-32e6d19cc247
- SPFv=spf1 ip4:208.72.135.210 include:spf.protection.outlook.com include:spfref.jackhenry.com include:spf.meridianlink.com include:spf.constantcontact.com include:_external.pscu.com -all
- apple-domain-verification=XFHgESR1Qfu98rnz
- docusign=54c494f2-2b7d-4ea4-900d-62e058fb1a33
- sophos-domain-verification=15e53e12af6c3fa1c73a6f1a736b336168be4d1d950f074e5767b97728245ff2
- MS=ms74600388
- amazon-business-verification=2bd73fe96a09bfc62d73ed9c7944776ba1a961b3eb35e4835a8dbf7d91aea449
Full email verification for atcu.com
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