Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
gmp.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-19 07:52:13 UTC · ↺ Refresh
MX Hostnames
- mail.gmp.de
MX Priorities
- mail.gmp.de: 10
A / AAAA Records
- 217.160.64.155 (no PTR)
Mail Server IPs
- 217.9.123.202 ↩ mail.gmp-architekten.de
SOA Record
Raw SOA
ns1074.ui-dns.com hostmaster.1and1.com 2017062681 28800 7200 604800 300
Primary NS (mname)
ns1074.ui-dns.com
Admin Email (rname)
hostmaster@1and1.com
Serial
2017062681
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1120.ui-dns.biz
ns1021.ui-dns.de
ns1047.ui-dns.org
ns1074.ui-dns.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com ip4:23.103.224.0/19 ip4:206.191.224.0/19 ip4:40.103.0.0/16 mx ip4:217.9.123.202 ip4:217.9.123.194 include:spf.abacuscity.ch include:spf.sendinblue.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;sp=reject;pct=100;adkim=s;aspf=s;rua=mailto:[email protected];ruf=mailto:[email protected];fo=1
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
mail._domainkey
✓ Public key: 216 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
8 records- teamviewer-sso-verification=37e67e5db1c64be3851db14bf5d61028
- brevo-code:fac50925e706bee33f1ef9ed65eb7209
- google-gws-recovery-domain-verification=67518014
- apple-domain-verification=5hMFaBTkrsKPWcj3
- deepbox-verification=7fYAfBOmRSJ_KVJ-qslZYNuMIlnQpAYjHfNKtAmKDiI
- SPFv=spf1 include:spf.protection.outlook.com ip4:23.103.224.0/19 ip4:206.191.224.0/19 ip4:40.103.0.0/16 mx ip4:217.9.123.202 ip4:217.9.123.194 include:spf.abacuscity.ch include:spf.sendinblue.com -all
- MS=ms71431965
- adobe-idp-site-verification=d76aa1d52f027328f4c6875078b039d36454f4358e575049a6a27116bc1dd5e7
Full email verification for gmp.de
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