singular-it.de

Valid Email Server
Domain Lookup › singular-it.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
singular-it.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-18 19:12:51 UTC · ↺ Refresh

MX Hostnames

  • singularit-de02b.mail.protection.outlook.com

MX Priorities

  • singularit-de02b.mail.protection.outlook.com: 0

A / AAAA Records

  • 167.235.77.142 ↩ static.142.77.235.167.clients.your-server.de
  • 2a01:4f8:c0c:1a75::1 (no PTR)

Mail Server IPs

  • 52.101.73.12 ↩ mail-am4pr0401cu00104.inbound.protection.outlook.com
  • 52.101.73.30 ↩ mail-am7pr05cu00306.inbound.protection.outlook.com
  • 52.101.73.153 ↩ mail-as8pr05cu00401.inbound.protection.outlook.com
  • 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::c ↩ mail-as8pr05cu00304.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::a ↩ mail-du0pr03cu00102.inbound.protection.outlook.com

SOA Record

Raw SOA ns-1719.awsdns-22.co.uk awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1719.awsdns-22.co.uk
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-1719.awsdns-22.co.uk
ns-446.awsdns-55.com
ns-795.awsdns-35.net
ns-1033.awsdns-01.org

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.crsend.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict 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
  • SPFv=spf1 include:spf.protection.outlook.com include:spf.crsend.com -all
  • cisco-ci-domain-verification=36e383a8d649e4293eb9cd3bb6911175589470a894385ffa87e80780dbd0b359
  • google-site-verification=Mjmayv08Zc6UkD5PU5R5HaWjcm1FlF4QR0dJt7ACbfA
  • jetbrains-domain-verification=eaq2vy24yt288rbo2fy0p3747
Full email verification for singular-it.de

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