Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
is-ruhr.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-03 10:11:35 UTC · ↺ Refresh
MX Hostnames
- isruhr-de0e.mail.protection.outlook.com
MX Priorities
- isruhr-de0e.mail.protection.outlook.com: 10
A / AAAA Records
- 92.205.236.89 ↩ 89.236.205.92.host.secureserver.net
Mail Server IPs
- 52.101.73.153 ↩ mail-as8pr05cu00401.inbound.protection.outlook.com
- 52.101.68.3 ↩ mail-db7pr03cu00403.inbound.protection.outlook.com
- 52.101.73.1 ↩ mail-am3pr04cu00501.inbound.protection.outlook.com
- 52.101.73.24 ↩ mail-as8pr05cu00300.inbound.protection.outlook.com
- 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca04::9 ↩ mail-db7pr03cu00601.inbound.protection.outlook.com
- 2a01:111:f403:ca04::10 ↩ mail-dbapr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::f ↩ mail-db7pr03cu00507.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.sbw.edu hostmaster.sbw.edu 2024062801 1080 3600 60480 500
Primary NS (mname)
ns1.sbw.edu
Admin Email (rname)
hostmaster@sbw.edu
Serial
2024062801
Refresh
1080s
Retry
3600s
Expire
60480s
Minimum TTL
500s
Nameservers (NS)
ns1.sbw.edu
ns3.sbw.edu
ns2.sbw.edu
SPF Record
✓ Soft Fail (~all)
v=spf1 redirect=spf.sbw.edu
📊 DNS lookups: 1/10
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1:d:s
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 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
6 records- MS=ms80276807
- adobe-idp-site-verification=10fd17e17758ce4b46e91fbfc32bba592a5ff774790833b0c8649102719db1c4
- SPFv=spf1 redirect=spf.sbw.edu
- google-site-verification=1u0fbTern3ND-IAlfTyzzYj-Q-rnO0OBK6gemvCdv7o
- apple-domain-verification=B441yaJD1Jh7bRjL
- MPj/ibyegPnh+5nHgZ43FyM6qFyX1PyEF/cQb529rZqAG2r4r2EW444MztfdZ8fZqgIJ7Xty4Vq7nkazAkiSNw==
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