sonneborn.com

Valid Email Server
Domain Lookup › sonneborn.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
sonneborn.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-01 06:36:00 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

  • us-smtp-inbound-2.mimecast.com: 20
  • us-smtp-inbound-1.mimecast.com: 10

A / AAAA Records

  • 65.52.8.139 (no PTR)

Mail Server IPs

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

SOA Record

Raw SOA ns59.worldnic.com namehost.worldnic.com 126033012 10800 3600 604800 3600
Primary NS (mname)
ns59.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126033012
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns59.worldnic.com
ns60.worldnic.com

SPF Record

✓ Soft Fail (~all)
v=spf1 mx a ip4:207.240.139.54 ip4:207.240.139.55 ip4:207.240.121.142 include:spf.messagelabs.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; pct=100; 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

9 records
  • _mwjh26zcx02t1kbzk6db4h2o0bhr01n
  • SPFv=spf1 mx a ip4:207.240.139.54 ip4:207.240.139.55 ip4:207.240.121.142 include:spf.messagelabs.com ~all
  • _d9yaznk4enx82hje4anl84i4pf97bdz
  • MS=ms91303318
  • c1m8Bv+v7MwWjX9YRg8J+p7h4JK3yZ+jcDAmCOD5MRg940eDMpiMpRslFJ2MIPE7y1AT5S7U9NsXZa7WTeNdoA==
  • ccfdssqpgbwpdvn36cbtph0zp6lwj7n3
  • knowbe4-site-verification=ac035c10822a613e78c544cb3b1d2a34
  • MS=ms94173738
  • MS=ms44146408
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