Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
brembo.pl
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-30 07:32:26 UTC · ↺ Refresh
MX Hostnames
- brembo-pl.mail.protection.outlook.com
MX Priorities
- brembo-pl.mail.protection.outlook.com: 10
A / AAAA Records
- 165.160.15.20 (no PTR)
- 165.160.13.20 (no PTR)
Mail Server IPs
- 52.101.73.153 ↩ mail-as8pr05cu00401.inbound.protection.outlook.com
- 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
- 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
- 52.101.73.12 ↩ mail-am4pr0401cu00104.inbound.protection.outlook.com
- 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca04::f ↩ mail-db7pr03cu00507.inbound.protection.outlook.com
- 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.netnames.net hostmaster.cscdns.net 2018081818 10800 1800 3600000 86400
Primary NS (mname)
ns1.netnames.net
Admin Email (rname)
hostmaster@cscdns.net
Serial
2018081818
Refresh
10800s
Retry
1800s
Expire
3600000s
Minimum TTL
86400s
Nameservers (NS)
ns2.netnames.net
ns1.netnames.net
SPF Record
✓ Strict (-all)
v=spf1 ip4:217.221.96.198 ip4:217.221.96.199 ip4:217.221.96.238 ip4:78.4.246.170 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ 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
4 records- MS=ms57546378
- knowbe4-site-verification=b45c403b5ae29689cab1f001e95a3284
- google-site-verification=t48wWuHAKWAxKHFWgm9sNk0NJed5rYwGtEz0k_Tbu8g
- SPFv=spf1 ip4:217.221.96.198 ip4:217.221.96.199 ip4:217.221.96.238 ip4:78.4.246.170 include:spf.protection.outlook.com -all
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for brembo.pl
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits