Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
expertcircle.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 07:08:07 UTC · ↺ Refresh
MX Hostnames
- expertcircle-de.mail.protection.outlook.com
MX Priorities
- expertcircle-de.mail.protection.outlook.com: 10
A / AAAA Records
- 149.126.4.46 ↩ s037.cyon.net
Mail Server IPs
- 52.101.73.153 ↩ mail-as8pr05cu00401.inbound.protection.outlook.com
- 52.101.73.16 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
- 52.101.73.26 ↩ mail-as9pr05cu01302.inbound.protection.outlook.com
- 2a01:111:f403:ca09::c ↩ mail-as8pr05cu00304.inbound.protection.outlook.com
- 2a01:111:f403:ca04::a ↩ mail-du0pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca09::b ↩ mail-am7pr05cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca04::4 ↩ mail-db4pr02cu00204.inbound.protection.outlook.com
SOA Record
Raw SOA
edge1.azuredns-cloud.net msnhst.microsoft.com 0 900 300 604800 300
Primary NS (mname)
edge1.azuredns-cloud.net
Admin Email (rname)
msnhst@microsoft.com
Serial
0
Refresh
900s
Retry
300s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns4-07.azure-dns.info
ns1-07.azure-dns.com
ns2-07.azure-dns.net
ns3-07.azure-dns.org
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com ptr:mail.sharepointonline.com include:u1883883.wl.sendgrid.net ip4:80.151.184.74 -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=none; aspf=s; ri=86400
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Strict
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
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
2 records- SPFv=spf1 include:spf.protection.outlook.com ptr:mail.sharepointonline.com include:u1883883.wl.sendgrid.net ip4:80.151.184.74 -all
- MS=ms50423392
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