zixcorp.com

Valid Email Server
Domain Lookup › zixcorp.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
zixcorp.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-20 16:04:51 UTC · ↺ Refresh

MX Hostnames

  • zixcorp-com.relay1g.spamh.com
  • zixcorp-com.relay1i.spamh.com
  • zixcorp-com.relay1h.spamh.com

MX Priorities

  • zixcorp-com.relay1g.spamh.com: 10
  • zixcorp-com.relay1h.spamh.com: 20
  • zixcorp-com.relay1i.spamh.com: 30

A / AAAA Records

  • 199.30.234.249 ↩ zix.com

Mail Server IPs

  • 63.71.12.97 ↩ lbl-t.spamh.com
  • 63.71.12.101 ↩ lbn-t.spamh.com
  • 63.71.12.99 ↩ lbm-t.spamh.com

SOA Record

Raw SOA ns01.zixcorp.com noc.zixcorp.com 2026030201 3600 300 2419200 300
Primary NS (mname)
ns01.zixcorp.com
Admin Email (rname)
noc@zixcorp.com
Serial
2026030201
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s

Nameservers (NS)

ns03.zixcorp.com
ns01.zixcorp.com
ns02.zixcorp.com

SPF Record

✓ Strict (-all)
v=spf1 include:spfa.zixcorp.com include:spfb.zixcorp.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 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

10 records
  • MS=ms60444413
  • MS=ms97723609
  • V8UPJE91TW0TF1GCVG0K5SXIY5OQNDR1RIQJY3J9
  • apple-domain-verification=HCql53Cmy1xkCvEc
  • MS=CB180AC42D7B57D7F968EE846EACE184290B58453600
  • google-gws-recovery-domain-verification=41730632
  • knowbe4-site-verification=548cb49874519e75321fe7de2d0f81d5
  • SPFv=spf1 include:spfa.zixcorp.com include:spfb.zixcorp.com -all
  • google-site-verification=WrLUT_Z9unZa7ZUiOKJOziU3VTBxT-5jMCFur1r5tO0
  • p9nGH5hp9iz5p5ZytD3uY04jWyTe905c3ONv7SQ34cz7BC77xwQGUV3NAlQscJL/DYiX6JtKcmZ9x3SxahgFSA==
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