Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
icondu.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-04 11:13:53 UTC · ↺ Refresh
MX Hostnames
- icondu-de.mail.protection.outlook.com
MX Priorities
- icondu-de.mail.protection.outlook.com: 10
A / AAAA Records
- 217.160.0.72 ↩ 217-160-0-72.elastic-ssl.ui-r.com
- 2001:8d8:100f:f000::2a9 ↩ 2001-08d8-100f-f000-0000-0000-0000-02a9.elastic-ssl.ui-r.com
Mail Server IPs
- 52.101.68.3 ↩ mail-db7pr03cu00403.inbound.protection.outlook.com
- 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
- 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
- 52.101.73.19 ↩ mail-as8pr04cu00803.inbound.protection.outlook.com
- 2a01:111:f403:ca04::4 ↩ mail-db4pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
- 2a01:111:f403:ca09::d ↩ mail-as9pr05cu01305.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1125.ui-dns.de hostmaster.1and1.com 2018051844 28800 7200 604800 300
Primary NS (mname)
ns1125.ui-dns.de
Admin Email (rname)
hostmaster@1and1.com
Serial
2018051844
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1018.ui-dns.com
ns1125.ui-dns.de
ns1052.ui-dns.biz
ns1125.ui-dns.org
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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
2 records- google-site-verification=wgYNFDfsRqcHNLz1Zb3-38eDaKfrSGoXPO-yXCh8eWc
- SPFv=spf1 include:spf.protection.outlook.com -all
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