Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
brettingers.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-02 03:07:44 UTC · ↺ Refresh
MX Hostnames
- mail.cool.de
MX Priorities
- mail.cool.de: 10
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 157.90.115.1 ↩ mail.cool.de
- 2a01:4f8:c2c:2621::1 ↩ mail.cool.de
SOA Record
Raw SOA
ns1.cool.de tb.cool.de 2024111402 16384 2048 1048576 2560
Primary NS (mname)
ns1.cool.de
Admin Email (rname)
tb@cool.de
Serial
2024111402
Refresh
16384s
Retry
2048s
Expire
1048576s
Minimum TTL
2560s
Nameservers (NS)
ns-215.awsdns-26.com
ns-592.awsdns-10.net
ns-1448.awsdns-53.org
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.google.com a:mail.cool.de ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; adkim=s; aspf=s; ri=3600; fo=1;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
google._domainkey
dkim._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 include:_spf.google.com a:mail.cool.de ~all
- google-site-verification=JPgKqAyZXjDsDsPuHGe_WpyvaImKnkUo7mhwj0bxby0
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