Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
realschule-gaggenau.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 20:12:30 UTC · ↺ Refresh
MX Hostnames
- mail.protonmail.ch
- mailsec.protonmail.ch
MX Priorities
- mailsec.protonmail.ch: 20
- mail.protonmail.ch: 10
A / AAAA Records
- 188.40.28.2 ↩ www222.your-server.de
Mail Server IPs
- 176.119.200.129 ↩ mailsec.protonmail.ch
- 185.205.70.129 ↩ mailsec.protonmail.ch
- 185.70.42.129 ↩ mailsec.protonmail.ch
- 185.205.70.128 ↩ mail.protonmail.ch
- 176.119.200.128 ↩ mail.protonmail.ch
- 185.70.42.128 ↩ mail.protonmail.ch
SOA Record
Raw SOA
hydrogen.ns.hetzner.com dns.hetzner.com 2026021300 86400 10800 3600000 3600
Primary NS (mname)
hydrogen.ns.hetzner.com
Admin Email (rname)
dns@hetzner.com
Serial
2026021300
Refresh
86400s
Retry
10800s
Expire
3600000s
Minimum TTL
3600s
Nameservers (NS)
hydrogen.ns.hetzner.com
oxygen.ns.hetzner.com
helium.ns.hetzner.de
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.protonmail.ch ~all
📊 DNS lookups: 1/10
~ 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
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
5 records- protonmail-verification=5ec2036b7e0425979548cc5385fa2f1ba2b6bd9b
- SPFv=spf1 include:_spf.protonmail.ch ~all
- MS=F5084C92FDDDC1E36C4A1E1E90380D04E04FD5E8
- apple-domain-verification=pFgJE5H901lCaP81
- brevo-code:84db52b69fa5e491b409518165506e34
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