Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
bollenback.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-17 22:47:43 UTC · ↺ Refresh
MX Hostnames
- bollenback-com.mail.protection.outlook.com
MX Priorities
- bollenback-com.mail.protection.outlook.com: 10
A / AAAA Records
- 104.21.27.45 (no PTR)
- 172.67.168.231 (no PTR)
- 2606:4700:3036::6815:1b2d
- 2606:4700:3036::ac43:a8e7
Mail Server IPs
- 52.101.11.13 ↩ mail-sn1pr0501cu00205.inbound.protection.outlook.com
- 52.101.41.54 ↩ mail-sj2pr05cu00506.inbound.protection.outlook.com
- 52.101.10.12 ↩ mail-bn1pr21cu00204.inbound.protection.outlook.com
- 52.101.10.10 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
- 2a01:111:f403:f901::2 ↩ mail-bl2pr02cu00402.inbound.protection.outlook.com
- 2a01:111:f403:c92c::1 ↩ mail-dm6pr03cu00401.inbound.protection.outlook.com
- 2a01:111:f403:c946::4 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:f804::2 ↩ mail-co1pr05cu00402.inbound.protection.outlook.com
SOA Record
Raw SOA
luciane.ns.cloudflare.com dns.cloudflare.com 2397391527 10000 2400 604800 1800
Primary NS (mname)
luciane.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397391527
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
lynn.ns.cloudflare.com
luciane.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.us.exclaimer.net include:customer.prosites.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]
✓ 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
2 records- MS=ms30134760
- SPFv=spf1 include:spf.protection.outlook.com include:spf.us.exclaimer.net include:customer.prosites.com -all
Full email verification for bollenback.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits