sikosa.de

Valid Email Server
Domain Lookup › sikosa.de

Domain Overview

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

Checked via [email protected] · 2026-04-04 01:07:23 UTC · ↺ Refresh

MX Hostnames

  • mail.sikosa.de

MX Priorities

  • mail.sikosa.de: 10

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

  • 212.184.216.242 ↩ mail.sikosa.de

SOA Record

Raw SOA colt.magdeburg.de ischuch.magdeburg.de 2012010113 86400 7200 604800 86400
Primary NS (mname)
colt.magdeburg.de
Admin Email (rname)
ischuch@magdeburg.de
Serial
2012010113
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
86400s

Nameservers (NS)

pns.dtag.de
secondary004.dtag.net
colt.magdeburg.de

SPF Record

✓ Strict (-all)
v=spf1 mx ip4:212.184.216.0/25 ip4:87.118.82.36 a:otc-de-spf.mms.t-systems-service.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict 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

1 record
  • SPFv=spf1 mx ip4:212.184.216.0/25 ip4:87.118.82.36 a:otc-de-spf.mms.t-systems-service.com -all
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