isso.de

Valid Email Server
Domain Lookup › isso.de

Domain Overview

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

Checked via [email protected] · 2026-04-02 18:21:42 UTC · ↺ Refresh

MX Hostnames

  • smx01.udag.de
  • smx00.udag.de

MX Priorities

  • smx01.udag.de: 10
  • smx00.udag.de: 10

A / AAAA Records

  • 217.160.0.206 ↩ 217-160-0-206.elastic-ssl.ui-r.com
  • 2001:8d8:100f:f000::2ff ↩ 2001-08d8-100f-f000-0000-0000-0000-02ff.elastic-ssl.ui-r.com

Mail Server IPs

  • 62.146.106.51 ↩ smx01.udag.de
  • 62.146.106.50 ↩ smx00.udag.de

SOA Record

Raw SOA ns.udag.de hostmaster.united-domains.de 2024013121 10800 3600 604800 3600
Primary NS (mname)
ns.udag.de
Admin Email (rname)
hostmaster@united-domains.de
Serial
2024013121
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns.udag.net
ns.udag.org
ns.udag.de

SPF Record

✓ Strict (-all)
v=spf1 include:_smtp.udag.de include:spf.nl2go.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine;
~ Quarantine — good protection (failing mail goes to spam)
📋 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

1 record
  • SPFv=spf1 include:_smtp.udag.de include:spf.nl2go.com -all
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