aha.biz

Valid Email Server
Domain Lookup › aha.biz

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
aha.biz
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-29 22:35:40 UTC · ↺ Refresh

MX Hostnames

  • aha-biz.mail.protection.outlook.com

MX Priorities

  • aha-biz.mail.protection.outlook.com: 0

A / AAAA Records

  • 13.51.62.86 ↩ ec2-13-51-62-86.eu-north-1.compute.amazonaws.com

Mail Server IPs

  • 52.101.68.16 ↩ mail-db4pr02cu00400.inbound.protection.outlook.com
  • 52.101.73.11 ↩ mail-am1pr04cu00103.inbound.protection.outlook.com
  • 52.101.68.3 ↩ mail-db7pr03cu00403.inbound.protection.outlook.com
  • 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::f ↩ mail-am7pr05cu00307.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::f ↩ mail-db7pr03cu00507.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.dnsimple.com admin.dnsimple.com 1744182587 86400 7200 604800 300
Primary NS (mname)
ns1.dnsimple.com
Admin Email (rname)
admin@dnsimple.com
Serial
1744182587
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns2.dnsimple-edge.net
ns3.dnsimple.com
ns4.dnsimple-edge.org
ns1.dnsimple.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com a:mail.aha-online.de include:spf.crsend.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

4 records
  • apple-domain-verification=cBV9t0vE5AvAf7vF
  • atlassian-domain-verification=H8VtEcm1hvWtYIHoh17RhuE2tEL1CNkMUXHXsg8OQkNC4KlmFiYvv73EDO7uWgNd
  • SPFv=spf1 include:spf.protection.outlook.com a:mail.aha-online.de include:spf.crsend.com ~all
  • MS=ms28472773
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