Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
mkrfirm.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 06:32:56 UTC · ↺ Refresh
MX Hostnames
- mkrfirm-com.mail.protection.outlook.com
- bitwits-mx1.titanhq.com
MX Priorities
- mkrfirm-com.mail.protection.outlook.com: 5
- bitwits-mx1.titanhq.com: 10
A / AAAA Records
- 141.193.213.11
- 141.193.213.10
Mail Server IPs
- 52.101.8.44 ↩ mail-dm5pr04cu00104.inbound.protection.outlook.com
- 52.101.11.9 ↩ mail-sn1pr02cu00101.inbound.protection.outlook.com
- 52.101.194.15 ↩ mail-ch4pr21cu00107.inbound.protection.outlook.com
- 52.101.41.3 ↩ mail-sj2pr05cu00103.inbound.protection.outlook.com
- 2a01:111:f403:c902::14 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 2a01:111:f403:c92c::3 ↩ mail-dm5pr04cu00103.inbound.protection.outlook.com
- 2a01:111:f403:c902::3 ↩ mail-sj0pr03cu01703.inbound.protection.outlook.com
- 18.189.8.252 ↩ us2-smtp2.titanhq.com
- 18.216.227.84 ↩ us2-smtp1.titanhq.com
- 3.140.150.54
SOA Record
Raw SOA
rush.easydns.com zone.easydns.com 1773877731 3600 600 604800 300
Primary NS (mname)
rush.easydns.com
Admin Email (rname)
zone@easydns.com
Serial
1773877731
Refresh
3600s
Retry
600s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
rush.easydns.com
motorhead.easydns.org
nirvana.easydns.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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- google-site-verification=SeKOhjxAS2b9ka7DsR5QwTKrq-v95iBB6P-zXu2KYN4
- SPFv=spf1 include:spf.protection.outlook.com -all
Full email verification for mkrfirm.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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