Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
hsk-schmidt.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 19:45:28 UTC · ↺ Refresh
MX Hostnames
- mail.altoport.org
MX Priorities
- mail.altoport.org: 10
A / AAAA Records
- 116.202.199.209 ↩ tih1.altoport.net
Mail Server IPs
- 193.41.226.169 ↩ mail.altoport.org
- 2a0d:5941:1:75e::95e4 ↩ mail.altoport.org
SOA Record
Raw SOA
nsa.alto-port.de nsb.alto-port.com 2025080400 3600 901 1209600 86400
Primary NS (mname)
nsa.alto-port.de
Admin Email (rname)
nsb@alto-port.com
Serial
2025080400
Refresh
3600s
Retry
901s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
nse.alto-port.ch
nsd.alto-port.eu
nsa.alto-port.de
nsc.alto-port.net
nsb.alto-port.com
SPF Record
✓ Strict (-all)
v=spf1 mx ip6:2a0d:5941:1:75e::95e4 ip4:116.202.199.209 -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
dkim._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: dkim
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 mx ip6:2a0d:5941:1:75e::95e4 ip4:116.202.199.209 -all
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