gsub.de

Valid Email Server
Domain Lookup › gsub.de

Domain Overview

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

Checked via [email protected] · 2026-04-01 11:13:17 UTC · ↺ Refresh

MX Hostnames

  • mail.gsub.de

MX Priorities

  • mail.gsub.de: 10

A / AAAA Records

  • 77.220.241.176 ↩ www.gsub.de

Mail Server IPs

  • 217.111.32.155 ↩ mail.gsub.de

SOA Record

Raw SOA ns1.gsub.de hostmaster.gsub.de 71 86400 7200 3600000 172800
Primary NS (mname)
ns1.gsub.de
Admin Email (rname)
hostmaster@gsub.de
Serial
71
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
172800s

Nameservers (NS)

ns1a.dodns.net
ns2a.dodns.net

SPF Record

✓ Soft Fail (~all)
v=spf1 a mx a:mx01.rexx-systems.com ip4:77.220.241.176 ip4:85.25.89.5 ip4:217.111.32.152/29 ip4:217.111.33.128/29 include:agenturserver.de include:spf.crsend.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

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

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

4 records
  • SPFv=spf1 a mx a:mx01.rexx-systems.com ip4:77.220.241.176 ip4:85.25.89.5 ip4:217.111.32.152/29 ip4:217.111.33.128/29 include:agenturserver.de include:spf.crsend.com ~all
  • atlassian-domain-verification=/h0C7z02tSkLVkURot/6lbPih8tnf9Tt8G1XYt3vtaQ/3XQHnAxd2RxaDiWgT5qy
  • cisco-ci-domain-verification=75906c54d31c6f5382974dd256b78843e84c49cce8291d6605527d0b45edc412
  • MS=ms12903490
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