Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
lagrangecc.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 04:10:44 UTC · ↺ Refresh
MX Hostnames
- lagrangecc-org.mail.protection.outlook.com
- mail.lagrangecc.org
MX Priorities
- mail.lagrangecc.org: 1
- lagrangecc-org.mail.protection.outlook.com: 0
A / AAAA Records
- 104.18.129.113 (no PTR)
- 104.18.130.113
Mail Server IPs
- 66.113.192.11 (no PTR)
- 52.101.8.46 ↩ mail-dm6pr05cu00406.inbound.protection.outlook.com
- 40.93.192.4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
- 52.101.194.0 ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 52.101.11.9 ↩ mail-sn1pr02cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f90d::1 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c901::1 ↩ mail-bl2pr04cu00201.inbound.protection.outlook.com
- 2a01:111:f403:c802:: ↩ mail-cy4pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f901::2 ↩ mail-bl2pr02cu00402.inbound.protection.outlook.com
SOA Record
Raw SOA
yichun.ns.cloudflare.com dns.cloudflare.com 2400243353 10000 2400 604800 1800
Primary NS (mname)
yichun.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400243353
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
yichun.ns.cloudflare.com
zita.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:168.245.14.77/32 ip4:168.245.126.209/32 ip4:168.245.121.127/32 ip4:50.31.61.116/32 include:sendgrid.net include:spf.antispamcloud.com include:spf.protection.outlook.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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
3 records- MS=ms18521193
- ca3-1e3214518e4d4b8d87d5352fcd801666
- SPFv=spf1 a mx ip4:168.245.14.77/32 ip4:168.245.126.209/32 ip4:168.245.121.127/32 ip4:50.31.61.116/32 include:sendgrid.net include:spf.antispamcloud.com include:spf.protection.outlook.com -all
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