Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
stadtwerke-clausthal.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 22:21:13 UTC · ↺ Refresh
MX Hostnames
- stadtwerkeclausthal-de02e.mail.protection.outlook.com
MX Priorities
- stadtwerkeclausthal-de02e.mail.protection.outlook.com: 0
A / AAAA Records
- 80.237.243.90 ↩ n80-237-243-90.cnet.hosteurope.de
Mail Server IPs
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
SOA Record
Raw SOA
nsmaster.xenet.de hostmaster.xenet.de 2026012100 10800 3600 604800 180
Primary NS (mname)
nsmaster.xenet.de
Admin Email (rname)
hostmaster@xenet.de
Serial
2026012100
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
180s
Nameservers (NS)
ns1.xenet.de
ns.xenet.de
ns2.xenet.de
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com ip4:213.144.8.33 ip4:88.79.192.217 -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- _telesec-domain-validation=308042_2022-08-10_MWINUtaQV17oEapGmkhLxd2DBgy26iLvls3fBhiFaUeVdqP1w2
- SPFv=spf1 include:spf.protection.outlook.com ip4:213.144.8.33 ip4:88.79.192.217 -all
- __telesec-domain-validation=324519_2024-08-19_2kGMFbVXioyT1NCR1LSJRCBVB1uh0oVCERF1j0RPbXE2hXcwFg
- MS=ms21514132
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