Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rsmtenon.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 20:19:42 UTC · ↺ Refresh
MX Hostnames
- eu-smtp-inbound-1.mimecast.com
- eu-smtp-inbound-2.mimecast.com
MX Priorities
- eu-smtp-inbound-2.mimecast.com: 10
- eu-smtp-inbound-1.mimecast.com: 10
A / AAAA Records
- 165.160.15.20 (no PTR)
- 165.160.13.20 (no PTR)
Mail Server IPs
- 91.220.42.211 ↩ eu-smtp-inbound-2.mimecast.com
- 195.130.217.211 ↩ eu-smtp-inbound-1.mimecast.com
- 195.130.217.201 ↩ eu-smtp-inbound-2.mimecast.com
- 91.220.42.241 ↩ eu-smtp-inbound-1.mimecast.com
- 195.130.217.241 ↩ eu-smtp-inbound-1.mimecast.com
- 91.220.42.201 ↩ eu-smtp-inbound-2.mimecast.com
SOA Record
Raw SOA
ns1.netnames.net hostmaster.cscdns.net 2018080110 10800 1800 3600000 300
Primary NS (mname)
ns1.netnames.net
Admin Email (rname)
hostmaster@cscdns.net
Serial
2018080110
Refresh
10800s
Retry
1800s
Expire
3600000s
Minimum TTL
300s
Nameservers (NS)
ns1.netnames.net
ns2.netnames.net
ns5.netnames.net
ns6.netnames.net
SPF Record
✓ Strict (-all)
v=spf1 include:_netblocks.mimecast.com -all
📊 DNS lookups: 1/10
✓ 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
✗ 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
3 records- d4rjx2imxbd3m8KlcqrERNuAmnvsMF49NcX0aHfP8nPqysDlbRmHAuWFwWZbsMFC4NVzYAva3ng6e2JdR3rcXQ==
- SPFv=spf1 include:_netblocks.mimecast.com -all
- KYa4iWHUZcpl2UEVDeTzxLnKUKGv8XdNxrGEflVJWRbKeQlbNc1RmddfGosh1UqDahKHNS5BdgLNdCCIATjh/Q==
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