constantin.de

Valid Email Server
Domain Lookup › constantin.de

Domain Overview

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

Checked via [email protected] · 2026-03-22 05:55:13 UTC · ↺ Refresh

MX Hostnames

  • constantin-de.mail.protection.outlook.com

MX Priorities

  • constantin-de.mail.protection.outlook.com: 0

A / AAAA Records

  • 217.160.0.179 ↩ 217-160-0-179.elastic-ssl.ui-r.com
  • 2001:8d8:100f:f000::228 ↩ 2001-08d8-100f-f000-0000-0000-0000-0228.elastic-ssl.ui-r.com

Mail Server IPs

  • 52.101.73.4 ↩ mail-am0pr83cu00404.inbound.protection.outlook.com
  • 52.101.73.28 ↩ mail-am7pr05cu00204.inbound.protection.outlook.com
  • 52.101.73.26 ↩ mail-as9pr05cu01302.inbound.protection.outlook.com
  • 52.101.68.25 ↩ mail-db8pr02cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::9 ↩ mail-db7pr03cu00601.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::e ↩ mail-db8pr02cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com

SOA Record

Raw SOA ns1069.ui-dns.biz hostmaster.schlund.de 2016112320 28800 7200 604800 300
Primary NS (mname)
ns1069.ui-dns.biz
Admin Email (rname)
hostmaster@schlund.de
Serial
2016112320
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1069.ui-dns.de
ns1069.ui-dns.biz
ns1069.ui-dns.org
ns1069.ui-dns.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf-eu.emailsignatures365.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

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ 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
  • SPFv=spf1 include:spf.protection.outlook.com include:spf-eu.emailsignatures365.com -all
  • MS=ms47757900
  • 521320b1e294423b88003f26741c6c87
  • google-site-verification=7hiivJad5Qea6T_jHSIGhHcnvwbygAms0FODsELdaB4
  • google-site-verification=QAIZ8SrHVyR1-AvNO0t8skh74jkjHqpn3wGV5izKFMQ
Full email verification for constantin.de

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