Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
russbach-gmbh.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 21:36:37 UTC · ↺ Refresh
MX Hostnames
- russbachgmbh-de02b.mail.protection.outlook.com
MX Priorities
- russbachgmbh-de02b.mail.protection.outlook.com: 0
A / AAAA Records
- 217.160.0.7 ↩ 217-160-0-7.elastic-ssl.ui-r.com
- 2001:8d8:100f:f000::24c ↩ 2001-08d8-100f-f000-0000-0000-0000-024c.elastic-ssl.ui-r.com
Mail Server IPs
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 52.101.170.1 ↩ mail-fr4p281cu03101.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:ca2d::2 ↩ mail-fr6p281cu00202.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
SOA Record
Raw SOA
ns1103.ui-dns.org hostmaster.1und1.com 2017060131 28800 7200 604800 600
Primary NS (mname)
ns1103.ui-dns.org
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060131
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns1090.ui-dns.com
ns1043.ui-dns.biz
ns1032.ui-dns.de
ns1103.ui-dns.org
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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
2 records- SPFv=spf1 include:spf.protection.outlook.com -all
- MS=ms45238455
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