rhfs.com

Valid Email Server
Domain Lookup › rhfs.com

Domain Overview

DNS: ✓ 20d ago Checker: ✓ 20d ago
rhfs.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-05-20 22:22:02 UTC · ↺ Refresh

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MX Hostnames

  • us-smtp-inbound-1.mimecast.com
  • us-smtp-inbound-2.mimecast.com

MX Priorities

  • us-smtp-inbound-2.mimecast.com: 10
  • us-smtp-inbound-1.mimecast.com: 10

A / AAAA Records

  • 104.19.233.38 (no PTR)
  • 104.19.232.38 (no PTR)

Mail Server IPs

  • 170.10.132.141 ↩ us-smtp-inbound-1.mimecast.com
  • 170.10.132.242 ↩ us-smtp-inbound-2.mimecast.com
  • 170.10.128.221 ↩ us-smtp-inbound-2.mimecast.com
  • 170.10.132.221 ↩ us-smtp-inbound-2.mimecast.com
  • 170.10.128.242 ↩ us-smtp-inbound-1.mimecast.com
  • 170.10.128.141 ↩ us-smtp-inbound-2.mimecast.com

SOA Record

Raw SOA ns19.worldnic.com namehost.worldnic.com 126032715 10800 3600 604800 3600
Primary NS (mname)
ns19.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126032715
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns20.worldnic.com
ns19.worldnic.com

SPF Record

✓ Strict (-all)
v=spf1 ip4:52.118.146.75 include:sunsrce.com include:24145943.spf05.hubspotemail.net -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✗ None detected

No 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

13 records
  • nitro-verification-code=ODk1MjkxMTM3OTc2NDE2ODU0Ng==
  • knowbe4-site-verification=2e0e652b8592c0f1dfa276e60137b293
  • atlassian-domain-verification=DCZDMJgJaknGw//hyjW1jkY60Z7PuwFbgT+HD+89ArysvcGNhekUO3tESvU5qJdG
  • r2s3irjaf74v3dr6aatg5s6rq5
  • apple-domain-verification=M5AzuRYUieWdecgc
  • Foxit-domain-verification=ba68a8a91e23436c335126a6f85d33a5
  • 0ed1fe018a3fa67b99832f49ae89ed4ad59b2fa466
  • pax8validate
  • 3di7iqsc6oncti9921njgdd5hr
  • e25mBuQbH9Z/U50aPe7c1cgTNM6jZ1B74RAqVgrUbKUfevTDvUXbhCra5PzmqviNFPn8HDDK+ZGzKkL/7gmSVA==
  • SPFv=spf1 ip4:52.118.146.75 include:sunsrce.com include:24145943.spf05.hubspotemail.net -all
  • MS=ms46645819
  • atlassian-domain-verification=04QyMoJC5MZPvbga0VRNdFsKd2inyONScainjE/W8lf2pZZXPXaTa5jkh1dyCg5M
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