thu.de

Valid Email Server
Domain Lookup › thu.de

Domain Overview

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

Checked via [email protected] · 2026-03-27 10:43:48 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

  • thu-de.mail.protection.outlook.com: 50

A / AAAA Records

  • 141.59.88.121 (no PTR)

Mail Server IPs

  • 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA dns1.hs-ulm.de hostmaster.thu.de 2026031702 21600 1800 2419200 86400
Primary NS (mname)
dns1.hs-ulm.de
Admin Email (rname)
hostmaster@thu.de
Serial
2026031702
Refresh
21600s
Retry
1800s
Expire
2419200s
Minimum TTL
86400s

Nameservers (NS)

dns1.belwue.de
dns1.hs-ulm.de
dns5.belwue.de
dns2.hs-ulm.de
dns3.belwue.de

SPF Record

✓ Soft Fail (~all)
v=spf1 mx a ip4:141.59.88.24/30 ip4:194.95.233.50 ip4:194.95.235.50 ip4:194.95.239.50 include:spf.protection.outlook.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

7 records
  • SPFv=spf1 mx a ip4:141.59.88.24/30 ip4:194.95.233.50 ip4:194.95.235.50 ip4:194.95.239.50 include:spf.protection.outlook.com ~all
  • cisco-ci-domain-verification=6b08401f282bab3d4c6cfa9383d741e49acebd54d3288b9b63574333a698ae31
  • google-site-verification=cu8FS7-7VyoNYoUZMokpbfRzluSdKA6Q9m9RrfBfho4
  • atlassian-domain-verification=Pq7tvCc3TzTsvs9YceS/8oBbrdxADw6qxjlRG/aFuCSqNfBMfaNsGhbWIo0fchEo
  • adobe-idp-site-verification=ad8363927d1477bc39213d8c5e0f6998dd2fcfd4c0caaeeb6ec4dda6d23d50a9
  • HFZnnpEj86dXWsuJgSt8oxTnZC7KWRpg4nZY/wP/h/o4rg3FUC/UNv6THHxWIG+SzMjLiLC/cszlD6tHA36HTw==
  • MS=6CF1792C156206536FD0629B1B762535D766E6F1
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