serval-isp.de

Valid Email Server
Domain Lookup › serval-isp.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
serval-isp.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-20 08:15:03 UTC · ↺ Refresh

MX Hostnames

  • servalisp-de01e.mail.protection.outlook.com

MX Priorities

  • servalisp-de01e.mail.protection.outlook.com: 0

A / AAAA Records

  • 217.160.0.9 ↩ 217-160-0-9.elastic-ssl.ui-r.com
  • 2001:8d8:100f:f000::2cc ↩ 2001-08d8-100f-f000-0000-0000-0000-02cc.elastic-ssl.ui-r.com

Mail Server IPs

  • 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
  • 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com

SOA Record

Raw SOA ns1097.ui-dns.org hostmaster.1and1.com 2017082632 28800 7200 604800 300
Primary NS (mname)
ns1097.ui-dns.org
Admin Email (rname)
hostmaster@1and1.com
Serial
2017082632
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1111.ui-dns.biz
ns1097.ui-dns.org
ns1086.ui-dns.com
ns1091.ui-dns.de

SPF Record

✓ Strict (-all)
v=spf1 a:webmail.serval-isp.de ip4:87.128.14.160 include:_spf.perfora.net include:_spf.kundenserver.de include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

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

3 records
  • SPFv=spf1 a:webmail.serval-isp.de ip4:87.128.14.160 include:_spf.perfora.net include:_spf.kundenserver.de include:spf.protection.outlook.com -all
  • MS=ms49050618
  • MS=ms42379304
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