Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cron.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-21 04:35:36 UTC · ↺ Refresh
MX Hostnames
- mail.cron.de
MX Priorities
- mail.cron.de: 21600
A / AAAA Records
- 78.46.89.14 ↩ mail.loewendorf.com
- 2a01:4f8:120:2253::2 ↩ mail.loewendorf.com
Mail Server IPs
- 78.46.89.14 ↩ mail.loewendorf.com
- 2a01:4f8:120:2253::2 ↩ mail.loewendorf.com
SOA Record
Raw SOA
ns1.routing.net hostmaster.routing.net 2025022809 3600 3600 86400 900
Primary NS (mname)
ns1.routing.net
Admin Email (rname)
hostmaster@routing.net
Serial
2025022809
Refresh
3600s
Retry
3600s
Expire
86400s
Minimum TTL
900s
Nameservers (NS)
ns2.routing.net
ns1.routing.net
ns3.routing.net
SPF Record
✓ Strict (-all)
v=spf1 +a +mx -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; adkim=s; aspf=s
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 5 chars (valid)
⚠ Public key too short (5 chars) — DKIM may be invalid.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 +a +mx -all
Full email verification for cron.de
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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