Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cusb.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-23 05:44:51 UTC · ↺ Refresh
MX Hostnames
- cusb-com.mail.protection.outlook.com
MX Priorities
- cusb-com.mail.protection.outlook.com: 0
A / AAAA Records
- 34.204.149.82 ↩ ec2-34-204-149-82.compute-1.amazonaws.com
Mail Server IPs
- 52.101.40.0 ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 52.101.8.42 ↩ mail-dm6pr03cu00402.inbound.protection.outlook.com
- 52.101.42.14 ↩ mail-mw2pr04cu00106.inbound.protection.outlook.com
- 52.101.41.4 ↩ mail-sj2pr05cu00204.inbound.protection.outlook.com
- 2a01:111:f403:f804::3 ↩ mail-co1pr03cu00403.inbound.protection.outlook.com
- 2a01:111:f403:f905::3 ↩ mail-dm5pr02cu00203.inbound.protection.outlook.com
- 2a01:111:f403:f908::1 ↩ mail-bn1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c931:: ↩ mail-sn1pr02cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
alexis.ns.cloudflare.com dns.cloudflare.com 2399525228 10000 2400 604800 1800
Primary NS (mname)
alexis.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399525228
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
elle.ns.cloudflare.com
alexis.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.mandrillapp.com include:_spf.psm.knowbe4.com include:spfref.jackhenry.com include:spf1.netteller.com include:mailgun.org ip4:107.167.192.34 ip4:208.88.237.59 -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected];
✓ Reject — strongest protection
📋 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
6 records- 1skmmt70dgr2ek4u4ubgfm1v79
- MS=ms78924535
- VmDQJYXdPPbr0CgD+hgEUES3nmQHyhNJWGMiyJSag12tO5fK5Ss4i7MvAua7qtowBYNRPsH37Y82WoM5Fi2TDA==
- co83lgsnuv5jfaf6g6m56f13nc
- nb07u6uo5pc8faths5u2fehmgu
- SPFv=spf1 include:spf.protection.outlook.com include:spf.mandrillapp.com include:_spf.psm.knowbe4.com include:spfref.jackhenry.com include:spf1.netteller.com include:mailgun.org ip4:107.167.192.34 ip4:208.88.237.59 -all
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