Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
tudag.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 12:09:43 UTC · ↺ Refresh
MX Hostnames
- tudag-de.mail.protection.outlook.com
MX Priorities
- tudag-de.mail.protection.outlook.com: 0
A / AAAA Records
- 217.160.0.140 ↩ 217-160-0-140.elastic-ssl.ui-r.com
- 2001:8d8:100f:f000::239 ↩ 2001-08d8-100f-f000-0000-0000-0000-0239.elastic-ssl.ui-r.com
Mail Server IPs
- 52.101.73.26 ↩ mail-as9pr05cu01302.inbound.protection.outlook.com
- 52.101.68.15 ↩ mail-db6pr03cu00107.inbound.protection.outlook.com
- 52.101.73.12 ↩ mail-am4pr0401cu00104.inbound.protection.outlook.com
- 52.101.68.3 ↩ mail-db7pr03cu00403.inbound.protection.outlook.com
- 2a01:111:f403:ca09::b ↩ mail-am7pr05cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com
- 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1064.ui-dns.org hostmaster.1und1.de 2017051010 28800 7200 604800 300
Primary NS (mname)
ns1064.ui-dns.org
Admin Email (rname)
hostmaster@1und1.de
Serial
2017051010
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1064.ui-dns.org
ns1064.ui-dns.biz
ns1064.ui-dns.de
ns1064.ui-dns.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:83.246.89.68 a:mail.fp-sign.com include:spf.protection.outlook.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; sp=quarantine; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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
5 records- anny-verification=5d187bca-0c4a-4d2c-a9f0-44a4337d1e97
- apple-domain-verification=8DLGIr5VosnMBRCO
- MS=ms13958896
- SPFv=spf1 ip4:83.246.89.68 a:mail.fp-sign.com include:spf.protection.outlook.com ~all
- gTA8Qh0Yjz0/+m/6j7kM26UVOLq6nXT+9Q7VhbE7T47MoQkIx5d81WX9qeGRH76KDt3x+Xw/pxlcR8DxnsBwnA==
Full email verification for tudag.de
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits