Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
itw-befestigungssysteme.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-04 17:19:34 UTC · ↺ Refresh
MX Hostnames
- itwbefestigungssysteme-de0i.mail.protection.outlook.com
MX Priorities
- itwbefestigungssysteme-de0i.mail.protection.outlook.com: 10
A / AAAA Records
- 51.105.147.223 (no PTR)
Mail Server IPs
- 52.101.9.24 ↩ mail-bl2pr02cu00400.inbound.protection.outlook.com
- 52.101.41.180 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
- 52.101.8.34 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f910:: ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 2a01:111:f403:c92c::3 ↩ mail-dm5pr04cu00103.inbound.protection.outlook.com
- 2a01:111:f403:f909:: ↩ mail-bn6pr04cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1103.ui-dns.de hostmaster.1und1.de 2017052951 28800 7200 604800 300
Primary NS (mname)
ns1103.ui-dns.de
Admin Email (rname)
hostmaster@1und1.de
Serial
2017052951
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1103.ui-dns.com
ns1103.ui-dns.org
ns1103.ui-dns.biz
ns1103.ui-dns.de
SPF Record
✓ Strict (-all)
v=spf1 ip4:62.159.19.203 ip4:62.153.70.44 ip4:91.216.43.145 ip4:80.153.160.168 include:_spf-eu.ionos.com include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ 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
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
1 record- SPFv=spf1 ip4:62.159.19.203 ip4:62.153.70.44 ip4:91.216.43.145 ip4:80.153.160.168 include:_spf-eu.ionos.com include:spf.protection.outlook.com -all
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