Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
stlouisbbb.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 18:52:23 UTC · ↺ Refresh
MX Hostnames
- stlouisbbb-org.mail.protection.outlook.com
MX Priorities
- stlouisbbb-org.mail.protection.outlook.com: 0
A / AAAA Records
- 208.91.197.39 (no PTR)
Mail Server IPs
- 52.101.41.28 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
- 52.101.40.6 ↩ mail-cy1pr03cu00106.inbound.protection.outlook.com
- 52.101.40.0 ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 52.101.8.51 ↩ mail-dm1pr04cu00203.inbound.protection.outlook.com
- 2a01:111:f403:c902::14 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 2a01:111:f403:f805::1 ↩ mail-co1pr03cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c902::7 ↩ mail-sj0pr02cu00107.inbound.protection.outlook.com
- 2a01:111:f403:f802::1 ↩ mail-sj2pr05cu00101.inbound.protection.outlook.com
SOA Record
Raw SOA
dns101.register.com root\@register.com 124121310 10800 3600 604800 3600
Primary NS (mname)
dns101.register.com
Admin Email (rname)
root\@register@com
Serial
124121310
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
dns102.register.com
dns101.register.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:bmesend.com include:spflist.hurdman.org include:spfbbb.bluebbb.org ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none;rua=mailto:[email protected];ruf=mailto:[email protected]; fo=1; adkim=r; aspf=r;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
google._domainkey
selector1._domainkey
selector2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
7 records- mandrill._domainkey.stlouisbbb.org
- MS=ms42457720
- MS=D91DA189F87CCB090150672D87EA05FEE0DA885B;
- google-site-verification=WNkihyM91VvJ7wBI2lyvweGqE9S_SGaltkHUWetJQ6o
- google-site-verification=oIYHePCC4pLNeLs4EzbFvrxiKM-eSHBwRb6ozgxYR44
- mandrill._domainkey.stlouisbbb.com
- SPFv=spf1 include:spf.protection.outlook.com include:bmesend.com include:spflist.hurdman.org include:spfbbb.bluebbb.org ~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 stlouisbbb.org
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits