Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
luetke.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 15:58:08 UTC · ↺ Refresh
MX Hostnames
- mx1.prointernet.com
- mx2.prointernet.com
MX Priorities
- mx2.prointernet.com: 20
- mx1.prointernet.com: 10
A / AAAA Records
- 54.36.245.140 ↩ iis09.prointernet.com
Mail Server IPs
- 54.36.245.41 ↩ pop.prointernet.com
- 54.36.245.40 ↩ smtp.prointernet.com
SOA Record
Raw SOA
a.ns14.net support.prointernet.de 2025122113 86400 3600 604800 10800
Primary NS (mname)
a.ns14.net
Admin Email (rname)
support@prointernet.de
Serial
2025122113
Refresh
86400s
Retry
3600s
Expire
604800s
Minimum TTL
10800s
Nameservers (NS)
b.ns14.net
d.ns14.net
a.ns14.net
c.ns14.net
SPF Record
✓ Strict (-all)
v=spf1 a mx include:spf.prointernet.com include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; aspf=s;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 a mx include:spf.prointernet.com include:spf.protection.outlook.com -all
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