udtonline.com

Valid Email Server
Domain Lookup › udtonline.com
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
udtonline.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-05-21 12:04:01 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

No priority data.

A / AAAA Records

  • 162.159.137.54
  • 162.159.136.54

Mail Server IPs

No IPs resolved.

SOA Record

No SOA record found.

Nameservers (NS)

ns80.worldnic.com
ns79.worldnic.com

SPF Record

✓ Strict (-all)
v=spf1 ip4:96.46.249.247 include:spfa.udtonline.com include:spfb.udtonline.com include:spfc.udtonline.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; adkim=s; aspf=s; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict · DKIM alignment: Strict
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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

23 records
  • ca3-6eda606d90274b4d94a7adfc814bf6f8
  • ET+c0hR2ks7WFh84JNpg+XpDfpME9hYwPRQ/gMoJJ99chLgDsABXPe1la31pqizkD0P844QEV0mE1FUNes23Ug==
  • google-site-verification=zeTbgk5Cm2vue3imRCUJopGZ9KAAPbMCL2yodowhN38
  • e9Mb7iRVX1IRuQ4UIL8PNVqli4xxPmZlH8RXdkEiDtlhR27DHS+LeBU3hM+32stoa6Ftw5rOrSRIR9WZDky/9w==
  • _zfiljm9qfwy1kpxka9lo1ftvhldhl3h
  • MS=ms54368150
  • google-site-verification=tDCSw75mGarQwpsc6FfYR65FZITtiSCWh3lewX-mzlc
  • qRPqUCkFEqZlLMJA5DvMJ3FLS1bR8eFe8pzNTlEQnE6sCutbcKjL4TEpx4SBd13n0JzVuyTgIMJptUivkWURBA==
  • _7vbr8y92yyxojer123fdgwlwumjmcni
  • atlassian-domain-verification=UEt/X27oxK4yUDSeUahUGKfpkrIOqthDw1HUW/u4iID71D9/9t4IaC7T/Up9tygG
  • smartsheet-site-validation=C4L6AGcAkArTLEVDi8VkO1MKshFLVy2W
  • SPFv=spf1 ip4:96.46.249.247 include:spfa.udtonline.com include:spfb.udtonline.com include:spfc.udtonline.com -all
  • atlassian-domain-verification=D75M9Ujl/M3KyddT0sxzWBJZgN6OgNKfaVUGoen8Npg/wIFaYZs0wkm8w9KEkE7W
  • d29fe2a72f8c9c0a37b40383f89455
  • miro-verification=de238743d0d8c0c27682a5048528ecd88b6abca2
  • 8i3ifC8lqLivOKbinRMIXZQLauYHybSA0B/vvgaCDorop49MkDt+2iHv6zBy0UWUAOvTY+twTf3BVPjm+BMVKA==
  • duo_sso_verification=hkItAAYVaeLMXZj3U0XBuWxy2ycK3b7auW7zaHKMEP5uSkgRVIEepSchUN3cUycj
  • apple-domain-verification=Q98wmLnkiy9zy6yh
  • lrpUIlqi1UEYD99LOzXGODCh+/r+iuN07bRjxYY0TCdmGPbQIBzmo6cqJ0tSN7Z5xVOdVtvx/BbL50yqCWLSLA==
  • OJKrZTLTjMk8RF/gpgpOQZIjgJLv08lXqfah9JNC+YfsyHp+nxanCsK/79Bvmg97t+RQ9ExpNM2RP4dSGNTY6Q==
  • pardot_321201_*=87b02b952cb10eabdacbfc244280767326e0ceb3f7eb77a55f3f274fc3e350d3
  • cisco-ci-domain-verification=18b5cd667fd6ea7718418085e13f1d8011c7256f6a1944a42ec8a7da3de3ea85
  • zoho-verification=zb1465418930975.zmverify.zoho.com
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