Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
dtfs.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-02 08:44:31 UTC · ↺ Refresh
MX Hostnames
- dtfs-de.mail.protection.outlook.com
MX Priorities
- dtfs-de.mail.protection.outlook.com: 10
A / AAAA Records
- 217.160.0.36 ↩ 217-160-0-36.elastic-ssl.ui-r.com
- 2001:8d8:100f:f000::2fd ↩ 2001-08d8-100f-f000-0000-0000-0000-02fd.elastic-ssl.ui-r.com
Mail Server IPs
- 52.101.73.28 ↩ mail-am7pr05cu00204.inbound.protection.outlook.com
- 52.101.73.30 ↩ mail-am7pr05cu00306.inbound.protection.outlook.com
- 52.101.73.24 ↩ mail-as8pr05cu00300.inbound.protection.outlook.com
- 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca09::2 ↩ mail-am0pr83cu00402.inbound.protection.outlook.com
- 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1104.ui-dns.com hostmaster.1and1.com 2017083024 28800 7200 604800 300
Primary NS (mname)
ns1104.ui-dns.com
Admin Email (rname)
hostmaster@1and1.com
Serial
2017083024
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1104.ui-dns.com
ns1074.ui-dns.org
ns1022.ui-dns.de
ns1045.ui-dns.biz
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo 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
1 record- SPFv=spf1 include:spf.protection.outlook.com -all
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