Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
immpact-bio.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 10:11:03 UTC · ↺ Refresh
MX Hostnames
- immpactbio-com01i.mail.protection.outlook.com
MX Priorities
- immpactbio-com01i.mail.protection.outlook.com: 0
A / AAAA Records
- 141.193.213.10 (no PTR)
Mail Server IPs
- 52.101.194.4 ↩ mail-ch4pr04cu00104.inbound.protection.outlook.com
- 52.101.10.6 ↩ mail-bn1pr21cu00106.inbound.protection.outlook.com
- 52.101.194.12 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 52.101.8.51 ↩ mail-dm1pr04cu00203.inbound.protection.outlook.com
- 2a01:111:f403:c922::1 ↩ mail-bl0pr05cu00501.inbound.protection.outlook.com
- 2a01:111:f403:c902::6 ↩ mail-sj0pr21cu00106.inbound.protection.outlook.com
- 2a01:111:f403:f90f:: ↩ mail-sa9pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c902::5 ↩ mail-sj2pr05cu00505.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.dtnt.info support.dtnt.com 2024080609 5400 3600 2419199 86400
Primary NS (mname)
ns1.dtnt.info
Admin Email (rname)
support@dtnt.com
Serial
2024080609
Refresh
5400s
Retry
3600s
Expire
2419199s
Minimum TTL
86400s
Nameservers (NS)
ns3.dtnt.info
ns2.dtnt.info
ns1.dtnt.info
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:outbound.mailhop.org include:mg-spf.greenhouse.io -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=5; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 5% of failing messages only
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
5 records- MS=ms93435678
- SPFv=spf1 include:spf.protection.outlook.com include:outbound.mailhop.org include:mg-spf.greenhouse.io -all
- MS=ms49140873
- MS=ms45806401
- docusign=4bc9024f-044b-4f19-9107-7e0717b49446
Full email verification for immpact-bio.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits