Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rosatomnewsletter.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 01:27:21 UTC · ↺ Refresh
MX Hostnames
- mx4.masterhost.ru
MX Priorities
- mx4.masterhost.ru: 10
A / AAAA Records
- 87.228.39.141 ↩ rosatomnewsletter.com
Mail Server IPs
- 90.156.133.179 ↩ mx4.masterhost.ru
SOA Record
Raw SOA
ns1.masterhost.ru hostmaster.masterhost.ru 1771936904 28800 7200 1209600 600
Primary NS (mname)
ns1.masterhost.ru
Admin Email (rname)
hostmaster@masterhost.ru
Serial
1771936904
Refresh
28800s
Retry
7200s
Expire
1209600s
Minimum TTL
600s
Nameservers (NS)
ns.masterhost.ru
ns1.masterhost.ru
ns2.masterhost.ru
SPF Record
✓ Strict (-all)
v=spf1 ip4:87.228.39.141 include:_spf.masterhost.ru -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 ip4:87.228.39.141 include:_spf.masterhost.ru -all
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