Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
kerberrose.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 04:35:38 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-1.mimecast.com
- us-smtp-inbound-2.mimecast.com
MX Priorities
- us-smtp-inbound-1.mimecast.com: 10
- us-smtp-inbound-2.mimecast.com: 10
A / AAAA Records
- 172.67.74.229 (no PTR)
- 104.26.14.109 (no PTR)
- 104.26.15.109 (no PTR)
- 2606:4700:20::681a:f6d (no PTR)
- 2606:4700:20::681a:e6d
- 2606:4700:20::ac43:4ae5
Mail Server IPs
- 170.10.128.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-1.mimecast.com
SOA Record
Raw SOA
pola.ns.cloudflare.com dns.cloudflare.com 2400063133 10000 2400 604800 1800
Primary NS (mname)
pola.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400063133
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
pola.ns.cloudflare.com
ruben.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:us._netblocks.mimecast.com include:spf.smarsh.com include:spf.myconnectwise.net include:sendgrid.net include:5121337.spf02.hubspotemail.net ip4:167.68.0.1/16 include:_spf.emailit.com -all
📊 DNS lookups: 6/10
✓ 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
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 include:us._netblocks.mimecast.com include:spf.smarsh.com include:spf.myconnectwise.net include:sendgrid.net include:5121337.spf02.hubspotemail.net ip4:167.68.0.1/16 include:_spf.emailit.com -all
- 7qbn59x2z8z08fjvbqvgjqwyfg3chwsz
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