Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
dr-holtkamp.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 06:31:55 UTC · ↺ Refresh
MX Hostnames
- mx2.agenturserver.de
- mx1.agenturserver.de
- mx4.agenturserver.de
- mx3.agenturserver.de
- mx4.agenturserver.de
MX Priorities
- mx4.agenturserver.de: 40
- mx4.agenturserver.de: 50
- mx1.agenturserver.de: 10
- mx2.agenturserver.de: 10
- mx3.agenturserver.de: 20
A / AAAA Records
- 104.21.69.115 (no PTR)
- 172.67.207.192 (no PTR)
- 2606:4700:3032::ac43:cfc0 (no PTR)
- 2606:4700:3035::6815:4573 (no PTR)
Mail Server IPs
- 185.15.192.59 ↩ mx4.agenturserver.de
- 185.15.192.56 ↩ mx1.agenturserver.de
- 185.15.192.57 ↩ mx2.agenturserver.de
- 185.15.192.58 ↩ mx3.agenturserver.de
SOA Record
Raw SOA
cloe.ns.cloudflare.com dns.cloudflare.com 2399226721 10000 2400 604800 1800
Primary NS (mname)
cloe.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399226721
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
cloe.ns.cloudflare.com
doug.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:185.15.192.32 ip4:193.53.250.15 a mx include:_spf.google.com include:agenturserver.de include:spf.easybill-mail.de include:_spf.newiomail.de ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
k1._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: k1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 ip4:185.15.192.32 ip4:193.53.250.15 a mx include:_spf.google.com include:agenturserver.de include:spf.easybill-mail.de include:_spf.newiomail.de ~all
- L2eMNiTkttttxpiMFCBivFlC6ZwieNcC
Full email verification for dr-holtkamp.de
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