Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
dumitrescu.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 11:57:11 UTC · ↺ Refresh
MX Hostnames
- mx2.onhoster.de
- mx1.onhoster.de
MX Priorities
- mx2.onhoster.de: 20
- mx1.onhoster.de: 10
A / AAAA Records
- 104.21.57.144 (no PTR)
- 172.67.164.88 (no PTR)
- 2606:4700:3037::ac43:a458 (no PTR)
- 2606:4700:3035::6815:3990 (no PTR)
Mail Server IPs
- 144.76.145.206 ↩ mx2.onhoster.de
- 2a01:4f8:242:1496:b::22 ↩ mx2.onhoster.de
- 144.76.145.205 ↩ mx1.onhoster.de
- 2a01:4f8:242:1496:b::21 ↩ mx1.onhoster.de
SOA Record
Raw SOA
roman.ns.cloudflare.com dns.cloudflare.com 2399567498 10000 2400 604800 1800
Primary NS (mname)
roman.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399567498
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
roman.ns.cloudflare.com
sue.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 mx include:_spf.onhoster.de ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- google-site-verification=Vqb7jqmt1dh6H1JQI_TSR5JaUB4IcYuXqt4KbSlK89g
- SPFv=spf1 mx include:_spf.onhoster.de ~all
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