Domain Overview
DNS: ✓ just now
Checker: ✓ just now
gerth.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-09-04 17:42:06 UTC · ↺ Refresh
MX Hostnames
- gerth-de.mail.protection.outlook.com
MX Priorities
- gerth-de.mail.protection.outlook.com: 0
A / AAAA Records
- 193.33.155.81 (no PTR)
Mail Server IPs
- 52.101.103.39 ↩ mail-miypr05cu00207.inbound.protection.outlook.com
- 52.101.73.1 ↩ mail-am3pr04cu00501.inbound.protection.outlook.com
- 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
- 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca21::e ↩ mail-matpr04cu00306.inbound.protection.outlook.com
- 2a01:111:f403:ca04::6 ↩ mail-db4pr02cu00406.inbound.protection.outlook.com
- 2a01:111:f403:ca3c::8 ↩ mail-zrxpr05cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c967::8 ↩ mail-cpjpr04cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns2.knipp.de dnsmaster.irondns.net 2024022165 10800 3000 2419200 900
Primary NS (mname)
ns2.knipp.de
Admin Email (rname)
dnsmaster@irondns.net
Serial
2024022165
Refresh
10800s
Retry
3000s
Expire
2419200s
Minimum TTL
900s
Nameservers (NS)
ns2.knipp.de
ns17.knipp.net
ns3.knipp.de
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.hearthemusic.gerth.de include:spf.scm-shop.de include:spf.scm-verlagsgruppe.de include:spf.emailsys.net include:spf.brevo.com ~all
📊 DNS lookups: 5/10
~ 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
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- google-site-verification=6pE21xpHpHuqdtFX0_Fs1yiaTNt-5smvsRhSPDE3gTw
- SPFv=spf1 include:spf.hearthemusic.gerth.de include:spf.scm-shop.de include:spf.scm-verlagsgruppe.de include:spf.emailsys.net include:spf.brevo.com ~all
- MS=ms51266414
- brevo-code:1801e555ecfd19e75d683756e8de82c3
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