iu29.org

Valid Email Server
Domain Lookup › iu29.org

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
iu29.org
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-04-04 06:00:12 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 104.17.71.73 (no PTR)

Mail Server IPs

  • 170.10.150.242 ↩ usb-smtp-delivery-2.mimecast.com
  • 170.10.152.242 ↩ usb-smtp-delivery-2.mimecast.com

SOA Record

Raw SOA ns.chesco.net barnm.iu29.org 208 10800 3600 1209600 900
Primary NS (mname)
ns.chesco.net
Admin Email (rname)
barnm@iu29.org
Serial
208
Refresh
10800s
Retry
3600s
Expire
1209600s
Minimum TTL
900s

Nameservers (NS)

ns1.chesco.net
infoblox2.chesco.net
ns3.chesco.net
infoblox1.chesco.net
ns.chesco.net
ns2.chesco.net

SPF Record

✓ Strict (-all)
v=spf1 include:usb._netblocks.mimecast.com ip4:204.63.214.24 ip4:204.63.214.16 include:sendgrid.net include:_spf.google.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; aspf=s
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict · 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
  • adobe-idp-site-verification=dee9c09fafa346db418f1da33f84d31ee9520048bf9bee27da9b4c589f06680b
  • MS=ms12038933
  • l63a2mgfj1dmg6bbu9teqaeu43
  • 0ed1fe018abd7f9a8b49384457a06a41eab5acfcad
  • SPFv=spf1 include:usb._netblocks.mimecast.com ip4:204.63.214.24 ip4:204.63.214.16 include:sendgrid.net include:_spf.google.com -all
  • google-site-verification=aCOcQyUUxXA-Ad7Gd_1yBB_5wV-jZJpIdH9NoJ6Y5HY
  • 25g4scitcbdv2vasa6s1pmnbhi
  • apple-domain-verification=S2mLiApptd67yyBP
  • ZOOM_verify_bNDb63j9QyGhfxYgHCh1MQ
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