Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
c-f-maier.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 12:29:31 UTC · ↺ Refresh
MX Hostnames
- mail4.c-f-maier.de
- mail5.c-f-maier.de
MX Priorities
- mail5.c-f-maier.de: 10
- mail4.c-f-maier.de: 20
A / AAAA Records
- 178.16.57.141 ↩ r3038.agenturserver.it
Mail Server IPs
- 5.158.162.148 ↩ mail5.c-f-maier.de
- 80.151.184.168 ↩ mail4.c-f-maier.de
SOA Record
Raw SOA
ns1101.ui-dns.de hostmaster.1und1.com 2017060134 28800 7200 604800 600
Primary NS (mname)
ns1101.ui-dns.de
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060134
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns1075.ui-dns.com
ns1067.ui-dns.biz
ns1049.ui-dns.org
ns1101.ui-dns.de
SPF Record
✓ Strict (-all)
v=spf1 mx -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;pct=100;rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
mail._domainkey
dkim._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
7 records- Sendinblue-code:adecc0917e90f4247f1d38f8bd3f5b97 ;Ticket#2021120310000913
- google-site-verification=WpJr_-G1IswL5NsFPyh6hlVKVoihsNPzviHqzsSEcNk ;Ticket#2022020910000974
- MS=ms47277308 ;Ticket#2020040710000816
- uc59p4m9d1hj6rn637h1efhc7h ;Ticket#2020040110001362
- SPFv=spf1 mx -all
- brevo-code:adecc0917e90f4247f1d38f8bd3f5b97
- sophos-domain-verification=81bf846e65aabe1d265ac11c1828b7bc4d9e5565748704ac3fe16bf3af59342f
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