ptb.de

Valid Email Server
Domain Lookup › ptb.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
ptb.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-04-02 17:04:22 UTC · ↺ Refresh

MX Hostnames

  • mx1.berlin.ptb.de
  • mx1.bs.ptb.de

MX Priorities

  • mx1.berlin.ptb.de: 20
  • mx1.bs.ptb.de: 10

A / AAAA Records

  • 192.53.103.121 ↩ u99121.bs.ptb.de

Mail Server IPs

  • 194.94.94.97 ↩ MX1.Berlin.PTB.DE
  • 2001:638:610:cdce::61 ↩ mx1.berlin.ptb.de
  • 192.53.103.120 ↩ mx1.bs.ptb.de
  • 2001:638:610:bd01::120 ↩ mx1.bs.ptb.de

SOA Record

Raw SOA ns1.ptb.de postmaster.ptb.de 2026032010 1200 3600 604800 86400
Primary NS (mname)
ns1.ptb.de
Admin Email (rname)
postmaster@ptb.de
Serial
2026032010
Refresh
1200s
Retry
3600s
Expire
604800s
Minimum TTL
86400s

Nameservers (NS)

dns-2.dfn.de
dns-3.dfn.de
ns1.ptb.de
dns-1.dfn.de

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:192.53.103.120/32 ip4:194.94.94.97/32 ip6:2001:638:610:bd01::120/128 ip6:2001:638:610:cdce::61/128 include:spf.smtp.net ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 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

3 records
  • SPFv=spf1 ip4:192.53.103.120/32 ip4:194.94.94.97/32 ip6:2001:638:610:bd01::120/128 ip6:2001:638:610:cdce::61/128 include:spf.smtp.net ~all
  • apple-domain-verification=XrEPkGN8FLiu5cwG
  • MS=ms585763033600
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