sernet.de

Valid Email Server
Domain Lookup › sernet.de

Domain Overview

DNS: ✓ 8h ago Checker: ✓ 8h ago
sernet.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-07-02 11:19:08 UTC · ↺ Refresh

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MX Hostnames

  • mail.sernet.de

MX Priorities

  • mail.sernet.de: 10

A / AAAA Records

  • 185.199.218.8 ↩ www.sernet.de
  • 2a0a:a3c0:0:d2e8::1 ↩ www.sernet.de

Mail Server IPs

  • 185.199.217.2 ↩ mail.sernet.de
  • 2a0a:a3c0:0:25::217:2 ↩ mail.sernet.de

SOA Record

Raw SOA ns1.sernet.de hostmaster.sernet.de 2026062400 28800 3600 1209600 3600
Primary NS (mname)
ns1.sernet.de
Admin Email (rname)
hostmaster@sernet.de
Serial
2026062400
Refresh
28800s
Retry
3600s
Expire
1209600s
Minimum TTL
3600s

Nameservers (NS)

ns3.sernet.de
ns2.sernet.net
ns1.sernet.de
ns4.sernet.net

SPF Record

✓ Strict (-all)
v=spf1 mx a:lists.sernet.de a:mail.winwerk.de a:shop.verinice.com a:shop.samba.plus a:oposso.samba.plus a:monitoring.sernet.de a:own.sernet.de ip4:194.29.233.66 ip4:194.26.190.2 ip4:95.130.16.117 include:spf.protection.outlook.com -all
📊 DNS lookups: 9/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

5 records
  • swisssign-check=djdMfo0YcH0oKk2mN9FWQUvDApU
  • apple-domain-verification=f4f6hgOYuIbYB7mH
  • SPFv=spf1 mx a:lists.sernet.de a:mail.winwerk.de a:shop.verinice.com a:shop.samba.plus a:oposso.samba.plus a:monitoring.sernet.de a:own.sernet.de ip4:194.29.233.66 ip4:194.26.190.2 ip4:95.130.16.117 include:spf.protection.outlook.com -all
  • 546-12b-Ew6
  • Service Network GmbH, Goettingen, Germany
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