Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
goblueteam.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 07:17:28 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-2.mimecast.com
- us-smtp-inbound-1.mimecast.com
MX Priorities
- us-smtp-inbound-1.mimecast.com: 10
- us-smtp-inbound-2.mimecast.com: 10
A / AAAA Records
- 54.151.57.48 ↩ firefly.greatbasin.net
Mail Server IPs
- 170.10.128.221 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-2.mimecast.com
SOA Record
Raw SOA
ns1.sunset.net support.greatbasin.net 2026030611 300 1800 1209600 86400
Primary NS (mname)
ns1.sunset.net
Admin Email (rname)
support@greatbasin.net
Serial
2026030611
Refresh
300s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns1.sunset.net
ns2.sunset.net
ns3.sunset.net
SPF Record
✓ Soft Fail (~all)
v=spf1 +a +mx +ip4:54.151.57.48 +include:us._netblocks.mimecast.com +include:wns1.com +include:wnmech.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;sp=none;adkim=r;aspf=r;pct=100;fo=1;rf=afrf;ri=86400;rua=mailto:[email protected];ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
5 records- ccjxjpb7684d6nwgysn3rptsvkyxq4lw
- _c6p1v6bes4z5c53ze0n2wqp4opvdeie
- SPFv=spf1 +a +mx +ip4:54.151.57.48 +include:us._netblocks.mimecast.com +include:wns1.com +include:wnmech.com ~all
- 0ed1fe018ac548806d02d74e22925a114e8f0fa099
- MS=4C29734FA75A4506A5CD122B89E87B4ACB308405
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for goblueteam.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits