Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
802cu.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 05:43:56 UTC · ↺ Refresh
MX Hostnames
- 802cu-com.mail.protection.outlook.com
MX Priorities
- 802cu-com.mail.protection.outlook.com: 15
A / AAAA Records
- 172.67.140.163 (no PTR)
- 104.21.62.243 (no PTR)
- 2606:4700:3031::6815:3ef3
- 2606:4700:3035::ac43:8ca3
Mail Server IPs
- 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
- 52.101.194.13 ↩ mail-ch0pr04cu00605.inbound.protection.outlook.com
- 52.101.11.9 ↩ mail-sn1pr02cu00101.inbound.protection.outlook.com
- 52.101.50.4 ↩ mail-co1pr03cu00404.inbound.protection.outlook.com
- 2a01:111:f403:f804::1 ↩ mail-co1pr05cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c946::1 ↩ mail-ch1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c946::2 ↩ mail-ch4pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:c901::1 ↩ mail-bl2pr04cu00201.inbound.protection.outlook.com
SOA Record
Raw SOA
houston.ns.cloudflare.com dns.cloudflare.com 2398597659 10000 2400 604800 1800
Primary NS (mname)
houston.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398597659
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
houston.ns.cloudflare.com
may.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:216.134.200.226 include:spf.protection.outlook.com include:amazonses.com include:fiserv.com include:spf.cashedge.com include:spf.cocci.com include:vertifi.com a:_mailhosts.swbc.com -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; fo=1; pct=100
~ Quarantine — good protection (failing mail goes to spam)
📋 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
6 records- cisco-ci-domain-verification=7de0be8ca7c0c09bbb189ca85fd05f728ce5f346da2dd3cf9247acb057b11873
- duo_sso_verification=YklkbQVONdnmweDYQbaxa4d7D5HMy0bmSkkrX2uQ84sRZxSJZq3QrRzaSNxrW8uF
- google-site-verification=UuR1DPuGHuZvn5vvCnG9pov4fq3Q5Y5ja_tcyJRRcwg
- google-site-verification=cn0YDWgLiujVOPcHJSC9GdPIcuetK4koE_dvY2lUALU
- ms-domain-verification=46290872-8fec-45cc-b6f4-f1ac10f0d6c2
- SPFv=spf1 ip4:216.134.200.226 include:spf.protection.outlook.com include:amazonses.com include:fiserv.com include:spf.cashedge.com include:spf.cocci.com include:vertifi.com a:_mailhosts.swbc.com -all
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