Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
expert.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-02 09:12:29 UTC · ↺ Refresh
MX Hostnames
- expert-de.mail.protection.outlook.com
MX Priorities
- expert-de.mail.protection.outlook.com: 0
A / AAAA Records
- 34.149.239.29 ↩ 29.239.149.34.bc.googleusercontent.com
Mail Server IPs
- 52.101.73.2 ↩ mail-as9pr07cu00302.inbound.protection.outlook.com
- 52.101.73.28 ↩ mail-am7pr05cu00204.inbound.protection.outlook.com
- 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
- 52.101.68.27 ↩ mail-db7pr03cu00503.inbound.protection.outlook.com
- 2a01:111:f403:ca04::f ↩ mail-db7pr03cu00507.inbound.protection.outlook.com
- 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca09::9 ↩ mail-as8pr04cu00801.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.arvato-systems.de hostmaster.bnic.bertelsmann.de 2026032300 3600 1800 3600000 3600
Primary NS (mname)
ns1.arvato-systems.de
Admin Email (rname)
hostmaster@bnic.bertelsmann.de
Serial
2026032300
Refresh
3600s
Retry
1800s
Expire
3600000s
Minimum TTL
3600s
Nameservers (NS)
dns017.arvato-systems.de
dns009.arvato-systems.de
ns1.arvato-systems.de
ns2.arvato-systems.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:servicemail24.de include:email.prnewswire.com include:expert-spf.de ip4:217.9.56.142 ip4:37.131.242.31 ip4:51.137.107.29 ip4:62.138.244.208/28 ip4:195.244.236.4 ip4:84.17.160.244 ip4:116.202.66.60 ip4:92.51.147.98 ip4:37.131.244.24 ip4:37.131.244.22 ip4:37.131.244.23 ip4:193.159.177.126 -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1;p=none;sp=none;rua=mailto:[email protected]; ruf=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
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
7 records- cdxd44mfn8hz4z9wbhwsxm05tfbq0927
- apple-domain-verification=C0hc8ZuDjr2xgbf1
- MS=ms76532802
- nrzjqy8f61f0r14ctsnp35rj0z89j2cl
- SPFv=spf1 include:spf.protection.outlook.com include:servicemail24.de include:email.prnewswire.com include:expert-spf.de ip4:217.9.56.142 ip4:37.131.242.31 ip4:51.137.107.29 ip4:62.138.244.208/28 ip4:195.244.236.4 ip4:84.17.160.244 ip4:116.202.66.60 ip4:92.51.147.98 ip4:37.131.244.24 ip4:37.131.244.22 ip4:37.131.244.23 ip4:193.159.177.126 -all
- google-site-verification=3bUg5Ro2-kGYFAz1Aef4ZBpqwbyfXgPS2rTVQ7akjjo
- sophos-domain-verification=02e9c25e7945745b46feb106b45cccf05c21b38f886e5c126bd63ddf22c73578
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