Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
bravebison.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 11:33:59 UTC · ↺ Refresh
MX Hostnames
- bravebison-com.mail.protection.outlook.com
MX Priorities
- bravebison-com.mail.protection.outlook.com: 0
A / AAAA Records
- 75.2.60.5 ↩ acd89244c803f7181.awsglobalaccelerator.com
Mail Server IPs
- 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
- 52.101.68.36 ↩ mail-db5pr02cu00104.inbound.protection.outlook.com
- 52.101.73.19 ↩ mail-as8pr04cu00803.inbound.protection.outlook.com
- 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca09::c ↩ mail-as8pr05cu00304.inbound.protection.outlook.com
- 2a01:111:f403:ca09::5 ↩ mail-am1pr04cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca09:: ↩ mail-am3pr04cu00500.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-1517.awsdns-61.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1517.awsdns-61.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1883.awsdns-43.co.uk
ns-352.awsdns-44.com
ns-567.awsdns-06.net
ns-1517.awsdns-61.org
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.uk.exclaimer.net include:25832621.spf01.hubspotemail.net ip4:188.39.12.8 ip4:45.75.201.196 ip4:75.2.60.5 include:_spf.salesforce.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
6 records- google-site-verification=QNQGaK5TBc6i1BvqesHwd_3QlWuRHXRF-Y5r0F_6Anc
- SPFv=spf1 include:spf.protection.outlook.com include:spf.uk.exclaimer.net include:25832621.spf01.hubspotemail.net ip4:188.39.12.8 ip4:45.75.201.196 ip4:75.2.60.5 include:_spf.salesforce.com -all
- workplace-domain-verification=qEz3GbziHVQP1PBtmSrzSxQHG92WCN
- 0ed1fe018a38e631af797b49859b62ba4bc9e51b99
- MS=ms92029972
- apple-domain-verification=bNyK2rZxOcLcX6xB
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 · Customize →
See demo & docs
Deep verification
Full email verification for bravebison.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits