Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rubicontp.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 00:34:08 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-2.mimecast.com
- us-smtp-inbound-1.mimecast.com
MX Priorities
- us-smtp-inbound-2.mimecast.com: 10
- us-smtp-inbound-1.mimecast.com: 10
A / AAAA Records
- 3.33.186.135 ↩ afa7f374f51cc8991.awsglobalaccelerator.com
- 15.197.167.90 ↩ afa7f374f51cc8991.awsglobalaccelerator.com
Mail Server IPs
- 170.10.128.221 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-2.mimecast.com
SOA Record
Raw SOA
ns41.domaincontrol.com dns.jomax.net 2026021800 28800 7200 604800 3600
Primary NS (mname)
ns41.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026021800
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns42.domaincontrol.com
ns41.domaincontrol.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:us._netblocks.mimecast.com include:msg.accessabacus.com ip4:142.54.108.82 include:amazonses.com include:spf.protection.outlook.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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
6 records- adobe-idp-site-verification=8e199839729af7b5e4fc3014b20a30ec7ce9a06178d8bd7266351af936e63d43
- anthropic-domain-verification-wgyspm=fK3yJmu1ywRtyOusG4a5CfsuO
- MS=ms65160320
- 0ed1fe018a4881bdd9dad34562bc410384f25d37a2
- openai-domain-verification=dv-nnmofldpnsQzmpfzfAyZhi2Z
- SPFv=spf1 include:us._netblocks.mimecast.com include:msg.accessabacus.com ip4:142.54.108.82 include:amazonses.com include:spf.protection.outlook.com ~all
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