Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
relmag.cz
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-14 03:33:33 UTC · ↺ Refresh
MX Hostnames
- bx.virusfree.cz
- cx.spamfree.cz
- ax.virusfree.cz
- dx.spamfree.cz
MX Priorities
- bx.virusfree.cz: 817
- cx.spamfree.cz: 833
- dx.spamfree.cz: 849
- ax.virusfree.cz: 801
A / AAAA Records
- 91.239.200.57 ↩ kocour.thinline.cz
- 2001:67c:e94::1:5bef:c839:1 ↩ kocour.thinline.cz
Mail Server IPs
- 89.187.156.46 ↩ bq.virusfree.cz
- 2001:67c:15a2::b1 ↩ bx.virusfree.cz
- 195.24.76.170 ↩ dq.spamfree.cz
- 2001:67c:15a3::d1 ↩ dx.spamfree.cz
- 31.7.241.24 ↩ ax.virusfree.cz
- 2001:67c:15a1::a1 ↩ ax.virusfree.cz
SOA Record
Raw SOA
ns1.thinline.cz hostmaster.relmag.cz 1533053932 86400 300 604800 1800
Primary NS (mname)
ns1.thinline.cz
Admin Email (rname)
hostmaster@relmag.cz
Serial
1533053932
Refresh
86400s
Retry
300s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
ns3.cesky-hosting.eu
ns1.thinline.cz
ns2.thinline.cz
SPF Record
✓ Soft Fail (~all)
v=spf1 redirect=spfsoft.virusfree.cz
📊 DNS lookups: 1/10
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 redirect=spfsoft.virusfree.cz
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