Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
luxsb.lu
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-28 13:16:13 UTC · ↺ Refresh
MX Hostnames
- luxsb-lu.mail.protection.outlook.com
MX Priorities
- luxsb-lu.mail.protection.outlook.com: 0
A / AAAA Records
- 172.67.215.154 (no PTR)
- 104.21.91.101 (no PTR)
- 2606:4700:3036::ac43:d79a
- 2606:4700:3035::6815:5b65
Mail Server IPs
- 52.101.73.30 ↩ mail-am7pr05cu00306.inbound.protection.outlook.com
- 52.101.73.2 ↩ mail-as9pr07cu00302.inbound.protection.outlook.com
- 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
- 52.101.68.36 ↩ mail-db5pr02cu00104.inbound.protection.outlook.com
- 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca04::a ↩ mail-du0pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca09::f ↩ mail-am7pr05cu00307.inbound.protection.outlook.com
- 2a01:111:f403:ca04::f ↩ mail-db7pr03cu00507.inbound.protection.outlook.com
SOA Record
Raw SOA
cullen.ns.cloudflare.com dns.cloudflare.com 2399450600 10000 2400 604800 1800
Primary NS (mname)
cullen.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399450600
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
wally.ns.cloudflare.com
cullen.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:149.56.182.220 ip4:194.145.208.55 include:zoho.com include:spf.hostpack.lu include:relay.mailchannels.net include:spf.protection.outlook.com include:sender.zohobooks.com include:zcsend.net include:transmail.net -all
📊 DNS lookups: 7/10
✓ 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: 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
7 records- linkedin-site-verification=33c97a40-a58f-494e-9452-62fffe5db542
- SPFv=spf1 ip4:149.56.182.220 ip4:194.145.208.55 include:zoho.com include:spf.hostpack.lu include:relay.mailchannels.net include:spf.protection.outlook.com include:sender.zohobooks.com include:zcsend.net include:transmail.net -all
- zoho-verification=zb1539593691117.zmverify.zoho.com
- MS=49495A8032462D333C931E6342CE17347D88D3AA
- brevo-code:b92212157b4d2500842004ff9cae484b
- google-site-verification=gxdhlQc7rRR21F9z1BmsvdpvpcT42flRNpzaQHxd7eU
- google-site-verification=tBYy3Fq709lzR8omLXVQ5ftQy_FfzN9luVBDJpC8oAA
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