Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
program51.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 10:04:07 UTC · ↺ Refresh
MX Hostnames
- mail2.walkingtoweb.com
- mailgateway.walkingtoweb.com
MX Priorities
- mailgateway.walkingtoweb.com: 5
- mail2.walkingtoweb.com: 10
A / AAAA Records
- 185.243.135.131 ↩ r32718.agenturserver.it
Mail Server IPs
- 192.162.204.55 ↩ mailgateway.walkingtoweb.com
- 192.162.204.52 ↩ mail2.walkingtoweb.com
SOA Record
Raw SOA
dns2.nsdns.info tech.key-systems.net 2025082201 10800 3600 604800 28800
Primary NS (mname)
dns2.nsdns.info
Admin Email (rname)
tech@key-systems.net
Serial
2025082201
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
28800s
Nameservers (NS)
dns2.nsdns.info
dns1.nsdns.info
dns3.nsdns.info
SPF Record
✓ Strict (-all)
v=spf1 mx -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s; rua=mailto:[email protected]; ruf=mailto:[email protected]; pct=100; fo=0:1:d:s;
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 2 found
mail._domainkey
s1._domainkey
✓ Public key: 392 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
8 records- D-TRUST=HGX5WGZNYQ9SET5O4WKRMZY
- MS=ms87604929
- 1password-site-verification=WQT7BVYNJ5F4HAM7ZG7CD4NQC4
- SPFv=spf1 mx -all
- google-site-verification=G4wkygpPEVZtTOpssgeG4soSCgwzBj8jn0vqGkFXGLY
- _8gshr5fe4f2l2aoxh3jhlv6g560sy2u
- tresorit-verification=oIfVgYy8x20otFf8AGAaUVywnLGqJPq3ATf_iILTod0
- apple-domain-verification=8yu4VXZH4QHg8zSM
Full email verification for program51.de
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