Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ceriumnetworks.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 15:43:48 UTC · ↺ Refresh
MX Hostnames
- mx1.hc4688-40.iphmx.com
- mx2.hc4688-40.iphmx.com
MX Priorities
- mx1.hc4688-40.iphmx.com: 0
- mx2.hc4688-40.iphmx.com: 0
A / AAAA Records
- 75.101.209.133 ↩ ec2-75-101-209-133.compute-1.amazonaws.com
Mail Server IPs
- 207.54.85.222 ↩ esa2.hc4688-40.iphmx.com
- 207.54.81.107 ↩ esa1.hc4688-40.iphmx.com
SOA Record
Raw SOA
edns8.ultradns.com netadmin.ceriumnetworks.com 2013072702 10800 3600 604800 300
Primary NS (mname)
edns8.ultradns.com
Admin Email (rname)
netadmin@ceriumnetworks.com
Serial
2013072702
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
edns8.ultradns.com
edns8.ultradns.net
edns8.ultradns.org
edns8.ultradns.biz
SPF Record
✓ Soft Fail (~all)
v=spf1 mx a:mx1.hc4688-40.iphmx.com a:mx2.hc4688-40.iphmx.com ip4:207.88.72.216 ip4:207.155.248.57 ip4:209.244.110.215 ip4:192.254.121.248 include:_phishspf.knowbe4.com include:shops.shopify.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✗ None detectedNo 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
16 records- v9librmrf1g4glh6ld6ie1rnt9
- trbk555wqtgyf0s9vp99r959w0sd0bqp
- 1password-site-verification=YHS6QDQLKZGDFDZWVIH3CCWXAU
- openai-domain-verification=dv-CAuabwBwd1qFsUFHXZdC8MaZ
- sophos-domain-verification=4b3d660d052bec49bfc0771652d6bc4015e0e7fb
- jZxCWo3aYL9FlGGdDnlLN8A5I5CeB+h7a16Mmg5uOH0a2n7CEO7iqRmyYCL83E+Ys2mSwkIVMHs5VNJnPUeVJQ==
- ciscocidomainverification=4573138ad38ac6b79de7663bbd195c89b28f2420bca812608cc895f724b61e1d
- SPFv=spf1 mx a:mx1.hc4688-40.iphmx.com a:mx2.hc4688-40.iphmx.com ip4:207.88.72.216 ip4:207.155.248.57 ip4:209.244.110.215 ip4:192.254.121.248 include:_phishspf.knowbe4.com include:shops.shopify.com ~all
- MS076282
- MS101653
- MS364647
- MS656890
- MS792458
- MS=ms60600896
- 9dqdtb0jv1es8oal66pf69n5q7
- dcjurleblemmbnchf5r4vp44uc
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