otto-jena.de

Valid Email Server
Domain Lookup › otto-jena.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
otto-jena.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-30 22:23:21 UTC · ↺ Refresh

MX Hostnames

  • mailgw2.jenoptik.com
  • mailgw1.jenoptik.com

MX Priorities

  • mailgw2.jenoptik.com: 20
  • mailgw1.jenoptik.com: 10

A / AAAA Records

  • 87.79.4.123 (no PTR)

Mail Server IPs

  • 185.116.38.129 ↩ mailgw2.jenoptik.com
  • 185.116.38.128 ↩ mailgw1.jenoptik.com

SOA Record

Raw SOA ns15.domserver.de zit-network.jenoptik.com 2025090801 43200 7200 1209600 86400
Primary NS (mname)
ns15.domserver.de
Admin Email (rname)
zit-network@jenoptik.com
Serial
2025090801
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns16.domserver.de
ns17.domserver.de
ns15.domserver.de
ns18.domserver.de

SPF Record

✗ Invalid
v=spf1 -all
📊 DNS lookups: 0/10
⚠ Strict -all with no allowed senders — no servers can send email for this domain.

DMARC Record

✓ Reject
v=DMARC1;p=reject;rua=mailto:[email protected];ruf=mailto:[email protected];aspf=s;adkim=s;fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Strict · DKIM alignment: Strict
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 13 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._domainkey
✓ DKIM properly configured for selector: google

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

3 records
  • MS=C2408FED50D62E58E11188CCF05FB82388CE1DF4
  • SPFv=spf1 -all
  • MS=ms82021617
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