Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
frohlinder.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 15:44:28 UTC · ↺ Refresh
MX Hostnames
- frohlinder.de
- srv01.server-mwsystem.de
MX Priorities
- frohlinder.de: 20
- srv01.server-mwsystem.de: 10
A / AAAA Records
- 116.202.212.56 ↩ srv01.server-mwsystem.de
- 2a01:4f8:2191:2f86::2 ↩ 2.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.6.8.f.2.1.9.1.2.8.f.4.0.1.0.a.2.ip6.arpa
Mail Server IPs
- 116.202.212.56 ↩ srv01.server-mwsystem.de
- 2a01:4f8:2191:2f86::2 ↩ 2.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.6.8.f.2.1.9.1.2.8.f.4.0.1.0.a.2.ip6.arpa
SOA Record
Raw SOA
nsa2.schlundtech.de mail.mschwab.de 2025103102 43200 7200 1209600 86400
Primary NS (mname)
nsa2.schlundtech.de
Admin Email (rname)
mail@mschwab.de
Serial
2025103102
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
nsd2.schlundtech.de
nsc2.schlundtech.de
nsb2.schlundtech.de
nsa2.schlundtech.de
SPF Record
✓ Soft Fail (~all)
v=spf1 mx a:frohlinder.de include:_spf.billbee.io ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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- brevo-code:2af93048761af02b078705fe2bcdd38a
- SPFv=spf1 mx a:frohlinder.de include:_spf.billbee.io ~all
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