chcb.org

Valid Email Server
Domain Lookup › chcb.org

Domain Overview

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

Checked via [email protected] · 2026-04-01 18:42:13 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 141.193.213.10 (no PTR)
  • 141.193.213.11 (no PTR)

Mail Server IPs

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

SOA Record

Raw SOA ns.burlingtontelecom.com hostmaster\@burlingtontelecom.com 2024121301 1000 500 14400 480
Primary NS (mname)
ns.burlingtontelecom.com
Admin Email (rname)
hostmaster\@burlingtontelecom@com
Serial
2024121301
Refresh
1000s
Retry
500s
Expire
14400s
Minimum TTL
480s

Nameservers (NS)

ns.burlingtontelecom.com
ns3.burlingtontelecom.com

SPF Record

✓ Strict (-all)
v=spf1 include:usb._netblocks.mimecast.com include:mail.zendesk.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

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

4 records
  • SPFv=spf1 include:usb._netblocks.mimecast.com include:mail.zendesk.com -all
  • duo_sso_verification=nGcVCuJ83UdihVuLf5MjEYWfUCuSFVKO2kS4Q6n0J8vtH9sKc3BG6h42khWWP5Ro
  • _7uohqsnkn9jc7cqeo1lexy4tajrrewo
  • MS=21C63FC027FBBCB007B1F6EF9BC82BD6AC401987
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