Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
jcfco.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 21:27:02 UTC · ↺ Refresh
MX Hostnames
- jcfco-com.mail.protection.outlook.com
MX Priorities
- jcfco-com.mail.protection.outlook.com: 10
A / AAAA Records
- 141.193.213.20 (no PTR)
- 141.193.213.21 (no PTR)
Mail Server IPs
- 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
- 52.101.10.18 ↩ mail-bn8pr05cu00302.inbound.protection.outlook.com
- 52.101.11.19 ↩ mail-sa9pr04cu00203.inbound.protection.outlook.com
- 52.101.50.4 ↩ mail-co1pr03cu00404.inbound.protection.outlook.com
- 2a01:111:f403:c902::16 ↩ mail-byapr04cu00306.inbound.protection.outlook.com
- 2a01:111:f403:f901::1 ↩ mail-bl0pr02cu00601.inbound.protection.outlook.com
- 2a01:111:f403:c946::5 ↩ mail-ch4pr21cu00105.inbound.protection.outlook.com
- 2a01:111:f403:f903:: (no PTR)
SOA Record
Raw SOA
ns-cloud-e1.googledomains.com cloud-dns-hostmaster.google.com 127 21600 3600 1209600 300
Primary NS (mname)
ns-cloud-e1.googledomains.com
Admin Email (rname)
cloud-dns-hostmaster@google.com
Serial
127
Refresh
21600s
Retry
3600s
Expire
1209600s
Minimum TTL
300s
Nameservers (NS)
ns-cloud-e4.googledomains.com
ns-cloud-e1.googledomains.com
ns-cloud-e2.googledomains.com
ns-cloud-e3.googledomains.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com ip4:65.79.165.30 include:spfhost.messageprovider.com ip4:192.254.121.248 ip4:23.21.109.197 include:spf.constantcontact.com ip4:216.83.164.192 ip4:23.21.109.212 include:_phishspf.knowbe4.com ip4:165.160.15.20 -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; fo=1; ri=3600; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ 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- l7s868c51tr5ybpw8s04b9r2nw0nmx1n
- SPFv=spf1 include:spf.protection.outlook.com ip4:65.79.165.30 include:spfhost.messageprovider.com ip4:192.254.121.248 ip4:23.21.109.197 include:spf.constantcontact.com ip4:216.83.164.192 ip4:23.21.109.212 include:_phishspf.knowbe4.com ip4:165.160.15.20 -all
- _00opa6l8ttiyzgpavkzvkp6hapqy2q5
- _pb3l4pf74tzlamv261zzm6x3w3ir3kt
- n2vmy755rbg7817vvx0ncv5jjwmd4d04
- cisco-ci-domain-verification=10c58febe31f930f557546665ef9ced32ddc3d40112af0931fed4e3056d59afd
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