nbtc.com

Valid Email Server
Domain Lookup › nbtc.com

Domain Overview

DNS: ✓ 20d ago Checker: ✓ 20d ago
nbtc.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-05-21 00:25:12 UTC · ↺ Refresh

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MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 94.247.142.1 (no PTR)

Mail Server IPs

  • 170.10.128.242 ↩ us-smtp-inbound-2.mimecast.com
  • 170.10.132.221 ↩ us-smtp-inbound-2.mimecast.com
  • 170.10.132.242 ↩ us-smtp-inbound-1.mimecast.com
  • 170.10.128.221 ↩ us-smtp-inbound-1.mimecast.com
  • 170.10.132.141 ↩ us-smtp-inbound-1.mimecast.com
  • 170.10.128.141 ↩ us-smtp-inbound-2.mimecast.com

SOA Record

Raw SOA pdns102.ultradns.com helpdesk.nbtc.com 2014082815 10800 3600 2419200 86400
Primary NS (mname)
pdns102.ultradns.com
Admin Email (rname)
helpdesk@nbtc.com
Serial
2014082815
Refresh
10800s
Retry
3600s
Expire
2419200s
Minimum TTL
86400s

Nameservers (NS)

pdns102.ultradns.com
pdns102.ultradns.net
pdns102.ultradns.org
pdns102.ultradns.biz

SPF Record

✓ Soft Fail (~all)
v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected],mailto:[email protected]; ri=86400
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]

DKIM Selectors

✓ 5 found
selector1._domainkey
selector2._domainkey
k1._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

18 records
  • google-site-verification=2yVMTw9ZVmyhG8hJEMZeIOcXoOapWT_RdFylMAq3pzU
  • MS=ms34249354
  • google-site-verification=sFhf5uG9cfjj5R1fi2yqTqGqIvJOluaN1HCQqnLJFlM
  • CBnNgw25EuXY/hx+D6sdQGt1lkkQJ/stsaZwn1JHg34x/CbcKNERr7TUX6ouHgCMh/3Av6ErhxdnUx2rpuUo7A==
  • facebook-domain-verification=gkz8vls26ha9yqv3fnin73857fd9hu
  • apple-domain-verification=ixeJoYqQVxi1Duon
  • MS=CE5C24986821990A14915C44F1D9BBB378A28566
  • MS=ms25611061
  • docusign=4e87c2bb-0fc3-4b69-9741-5bff4895f8e7
  • d2c0fb2a1361feb9cbe50ebe8f2f0a0ffdf6f6d4b434b2844f
  • SPFv=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all
  • adobe-idp-site-verification=fa8c008e8d84c22573679f7ec2ac589b75d7f2b2aca918fac2ddba730db3459b
  • mandrill_verify.Zxv3QRW3JGe67KBgO96CwQ
  • docusign=d08d010b-eb56-4eec-ba1e-74eda0482a82
  • firebase=lynked-nb
  • atlassian-domain-verification=SNzaFh/ixJZm9aDViM6aNYs9TlN6bpHdtAWNzzKpPh29e4tZYkLajGu3ejPQSfP2
  • logmein-verification-code=xI3J08BAlGTmWf6RnC2sQvRij
  • specops-verification-code=2b1d2aa9-564a-4329-b658-94b109e4b591
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