zap37.de

Valid Email Server
Domain Lookup › zap37.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
zap37.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-18 00:29:29 UTC · ↺ Refresh

MX Hostnames

  • smtp-01.tld.t-online.de
  • smtp-02.tld.t-online.de

MX Priorities

  • smtp-01.tld.t-online.de: 10
  • smtp-02.tld.t-online.de: 10

A / AAAA Records

  • 80.150.6.143 ↩ tld.t-online.de
  • 2003:2:2:15:80:150:6:143 ↩ tld.t-online.de

Mail Server IPs

  • 194.25.134.76 ↩ smtp-01.tld.t-online.de
  • 194.25.134.12 ↩ smtp-02.tld.t-online.de

SOA Record

Raw SOA dns01-tld.t-online.de dns.telekom.de 2023090101 21600 3600 604800 86400
Primary NS (mname)
dns01-tld.t-online.de
Admin Email (rname)
dns@telekom.de
Serial
2023090101
Refresh
21600s
Retry
3600s
Expire
604800s
Minimum TTL
86400s

Nameservers (NS)

dns02-tld.t-online.de
dns01-tld.t-online.de

SPF Record

✓ Strict (-all)
v=spf1 ip4:194.25.134.16/29 ip4:194.25.134.80/29 ip4:80.150.6.143 ip6:2003:2:2:15:80:150:6:150 -all
📊 DNS lookups: 0/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; fo=1; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

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

1 record
  • SPFv=spf1 ip4:194.25.134.16/29 ip4:194.25.134.80/29 ip4:80.150.6.143 ip6:2003:2:2:15:80:150:6:150 -all
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