Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ertron.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-30 21:01:52 UTC · ↺ Refresh
MX Hostnames
- mail.ertron.de
MX Priorities
- mail.ertron.de: 10
A / AAAA Records
- 151.252.50.151 ↩ server13.fbsc.de
Mail Server IPs
- 91.26.72.11 ↩ mail.ertron.de
SOA Record
Raw SOA
ns1.fbsc.de support.fbsc.de 1752426076 10800 3600 604800 3600
Primary NS (mname)
ns1.fbsc.de
Admin Email (rname)
support@fbsc.de
Serial
1752426076
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns2.fbsc.de
ns1.fbsc.de
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx include:_spf.config.fbsc.de ip4:91.26.72.8/29 ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
s1._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- google-site-verification=NBh6hTUibwEygyH5NuIR5_aDaFM-e3XQ9hY6saeZT6g
- SPFv=spf1 a mx include:_spf.config.fbsc.de ip4:91.26.72.8/29 ~all
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