Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
blsi.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-30 08:37:58 UTC · ↺ Refresh
MX Hostnames
- blsi-com.mail.protection.outlook.com
MX Priorities
- blsi-com.mail.protection.outlook.com: 0
A / AAAA Records
- 67.227.206.72 ↩ guest03.new.firefly.com
Mail Server IPs
- 52.101.11.9 ↩ mail-sn1pr02cu00101.inbound.protection.outlook.com
- 52.101.11.2 ↩ mail-sn1pr03cu00102.inbound.protection.outlook.com
- 52.101.40.2 ↩ mail-cy1pr05cu00402.inbound.protection.outlook.com
- 52.101.11.3 ↩ mail-sn1pr0501cu00103.inbound.protection.outlook.com
- 2a01:111:f403:c92c::3 ↩ mail-dm5pr04cu00103.inbound.protection.outlook.com
- 2a01:111:f403:f908:: ↩ mail-bn1pr21cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c946::6 ↩ mail-ch5pr02cu00406.inbound.protection.outlook.com
- 2a01:111:f403:f90a:: ↩ mail-bn6pr02cu00300.inbound.protection.outlook.com
SOA Record
Raw SOA
reese.ns.cloudflare.com dns.cloudflare.com 2400136305 10000 2400 604800 1800
Primary NS (mname)
reese.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400136305
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
reese.ns.cloudflare.com
zita.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:50.187.112.221 ip4:40.88.130.52 ip4:52.224.125.144 ip4:172.191.137.49 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;pct=100;rua=mailto:[email protected];ruf=mailto:[email protected];ri=86400;fo=1;
✓ Reject — strongest protection
📋 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
5 records- MS=ms36686007
- amgnvvfp1ob6vbgmg7n9o4gmsn
- google-site-verification=aNnu3jK6ZzEgGWgQpYHTio2uqCuGeMsk0pFvALHrG7Q
- inkb9teekpjimnh03jtol2m6e0
- SPFv=spf1 ip4:50.187.112.221 ip4:40.88.130.52 ip4:52.224.125.144 ip4:172.191.137.49 include:spf.protection.outlook.com -all
Full email verification for blsi.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits