Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
duisport.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 09:17:47 UTC · ↺ Refresh
MX Hostnames
- duisport-de.mail.protection.outlook.com
MX Priorities
- duisport-de.mail.protection.outlook.com: 0
A / AAAA Records
- 148.251.80.144 ↩ static.144.80.251.148.clients.your-server.de
Mail Server IPs
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
SOA Record
Raw SOA
pns.dtag.de dns.telekom.de 2026020201 10800 3600 2419200 3600
Primary NS (mname)
pns.dtag.de
Admin Email (rname)
dns@telekom.de
Serial
2026020201
Refresh
10800s
Retry
3600s
Expire
2419200s
Minimum TTL
3600s
Nameservers (NS)
pns.dtag.de
ns1.telekom.net
SPF Record
✓ Strict (-all)
v=spf1 ip4:62.153.148.110 ip4:212.87.139.130 include:spf.protection.outlook.com include:spf.mailjet.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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
6 records- 210zz498m9yz224gq8gm29ymzvg6tlnf
- MS=ms28769660
- SPFv=spf1 ip4:62.153.148.110 ip4:212.87.139.130 include:spf.protection.outlook.com include:spf.mailjet.com -all
- adobe-idp-site-verification=58e30c99215b27e2b6d61e65def1e9ceca657da23382c6b9c26aa401709730ae
- cisco-ci-domain-verification=662e83f6b7d71b77c067c9de37df741b4e2705c0bb0d4dc4d7a95b137973dfc5
- 34FDPODOTl64CjfjdYXHuGI5ZT7m5NVasrLUOHxggWPisYXoQ4m8nq45gkbozoJnjp6LHSTjgeLiwvykH7QqAw==
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