Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
mjbfirm.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 08:17:44 UTC · ↺ Refresh
MX Hostnames
- mjbfirm-com.mail.protection.outlook.com
MX Priorities
- mjbfirm-com.mail.protection.outlook.com: 0
A / AAAA Records
- 104.21.41.132 (no PTR)
- 172.67.147.95 (no PTR)
- 2606:4700:3032::6815:2984
- 2606:4700:3031::ac43:935f
Mail Server IPs
- 52.101.10.10 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
- 52.101.194.13 ↩ mail-ch0pr04cu00605.inbound.protection.outlook.com
- 52.101.9.14 ↩ mail-bl0pr03cu00206.inbound.protection.outlook.com
- 52.101.50.1 ↩ mail-co1pr05cu00401.inbound.protection.outlook.com
- 2a01:111:f403:f910:: ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 2a01:111:f403:c902::1 ↩ mail-sj2pr05cu00401.inbound.protection.outlook.com
- 2a01:111:f403:c946::5 ↩ mail-ch4pr21cu00105.inbound.protection.outlook.com
- 2a01:111:f403:f805::1 ↩ mail-co1pr03cu00301.inbound.protection.outlook.com
SOA Record
Raw SOA
alec.ns.cloudflare.com dns.cloudflare.com 2396887576 10000 2400 604800 1800
Primary NS (mname)
alec.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2396887576
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
amy.ns.cloudflare.com
alec.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email include:spf.protection.outlook.com include:relay.kinstamailservice.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate 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
3 records- google-site-verification=XVKQbhdY3EN_To0vzt1dIv6anDhYRI5agFITcqy5NRA
- SPFv=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email include:spf.protection.outlook.com include:relay.kinstamailservice.com ~all
- NETORGFT7292773.onmicrosoft.com
Full email verification for mjbfirm.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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