Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cre.ag
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-19 12:43:27 UTC · ↺ Refresh
MX Hostnames
- mailin4.tag-ag.com
- cre.ag
- mailin3.tag-ag.com
MX Priorities
- mailin3.tag-ag.com: 10
- cre.ag: 10
- mailin4.tag-ag.com: 10
A / AAAA Records
- 212.162.56.253 ↩ d65.x-mailer.de
Mail Server IPs
- 213.61.90.91 ↩ mailin3.tag-ag.com
- 2001:920:1847:6501::2 (no PTR)
- 212.162.56.253 ↩ d65.x-mailer.de
- 217.110.13.18 ↩ mailin4.tag-ag.com
- 2001:4ba0:92c1:84::5 ↩ mailin4.tag-ag.com
SOA Record
Raw SOA
ns1.kcs-netz.de hostmaster.cre.ag 2020120900 86400 7200 3600000 172800
Primary NS (mname)
ns1.kcs-netz.de
Admin Email (rname)
hostmaster@cre.ag
Serial
2020120900
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
172800s
Nameservers (NS)
ns2.kcs-netz.de
ns1.kcs-netz.de
SPF Record
✓ Strict (-all)
v=spf1 include:tag-ag.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100;aspf=s;
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✗ None detectedNo 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:tag-ag.com -all
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