Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
na.rsgroup.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-05-21 04:30:12 UTC · ↺ Refresh
MX Hostnames
- eu-smtp-inbound-1.mimecast.com
- eu-smtp-inbound-2.mimecast.com
MX Priorities
No priority data.
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
No IPs resolved.
SOA Record
No SOA record found.
Nameservers (NS)
No nameservers found.
SPF Record
✓ Strict (-all)
v=spf1 ip4:139.138.56.222 ip4:216.71.146.215 ip4:192.92.97.212 ip4:209.123.45.224 ip4:209.123.45.225 ip4:209.123.45.226 include:amazonses.com include:mktomail.com include:eu._netblocks.mimecast.com include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=none; adkim=s; rua=mailto:[email protected]; ruf=mailto:[email protected]; pct=100; fo=1
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- miro-verification=41036b82fa76936ebd4054c2f374d504cdfc556c
- SPFv=spf1 ip4:139.138.56.222 ip4:216.71.146.215 ip4:192.92.97.212 ip4:209.123.45.224 ip4:209.123.45.225 ip4:209.123.45.226 include:amazonses.com include:mktomail.com include:eu._netblocks.mimecast.com include:spf.protection.outlook.com -all
- MS=ms74926412
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