Domain Overview
DNS: ✓ 21h ago
Checker: ✓ 21h ago
dk.ru
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-05-20 01:30:46 UTC · ↺ Refresh
MX Hostnames
- mail.dk.ru
- mail1.dk.ru
MX Priorities
- mail1.dk.ru: 10
- mail.dk.ru: 100
A / AAAA Records
- 89.108.123.186 ↩ u9327.col.agava.net
Mail Server IPs
- 212.49.105.6 (no PTR)
- 85.12.221.146 ↩ insys.apress.ru
SOA Record
Raw SOA
ns1.railsc.ru support.railsc.ru 2026041001 28800 14400 604800 300
Primary NS (mname)
ns1.railsc.ru
Admin Email (rname)
support@railsc.ru
Serial
2026041001
Refresh
28800s
Retry
14400s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns8-l2.nic.ru
ns4-cloud.nic.ru
ns8-cloud.nic.ru
ns1.railsc.ru
ns2.railsc.ru
ns3.railsc.ru
ns4-l2.nic.ru
SPF Record
✓ Strict (-all)
v=spf1 include:servers.mcsv.net include:mxsspf.sendpulse.com include:spf.sendsay.ru include:apress.spf.dk.ru a:mx.dk.ru a:mx2.dk.ru ip4:89.108.123.31 ip4:89.108.123.66 -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
k1._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: k1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- SPFv=spf1 include:servers.mcsv.net include:mxsspf.sendpulse.com include:spf.sendsay.ru include:apress.spf.dk.ru a:mx.dk.ru a:mx2.dk.ru ip4:89.108.123.31 ip4:89.108.123.66 -all
- google-site-verification=HG0fgOMT8cwfUuJvYfZHnkLJd1J0rSMxqunKQFVBvV4
- google-site-verification=y7QXieJKLWC5c19b4rmpCoSf8VOmxYSeu9f0chMR5cA
Full email verification for dk.ru
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