cobusgroup.com

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

Domain Overview

DNS: ⚡ live Checker: ⚡ live
cobusgroup.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-09-23 02:57:56 UTC · ↺ Refresh

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MX Hostnames

  • mail.blueowlst.com.ar

MX Priorities

  • mail.blueowlst.com.ar: 10

A / AAAA Records

  • 54.175.47.82 ↩ ec2-54-175-47-82.compute-1.amazonaws.com

Mail Server IPs

  • 119.8.78.29 ↩ mail.blueowlst.com.ar

SOA Record

Raw SOA ns-638.awsdns-15.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-638.awsdns-15.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-134.awsdns-16.com
ns-1853.awsdns-39.co.uk
ns-638.awsdns-15.net
ns-1158.awsdns-16.org

SPF Record

✓ Strict (-all)
v=spf1 include:spf.hostmar.com a mx a:mail.blueowlst.com.ar include:spf.fromdoppler.com include:relay.mailchannels.net -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; sp=quarantine; adkim=r; aspf=r;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: quarantine

DKIM Selectors

✓ 1 found
default._domainkey
✓ Public key: 216 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

1 record
  • SPFv=spf1 include:spf.hostmar.com a mx a:mail.blueowlst.com.ar include:spf.fromdoppler.com include:relay.mailchannels.net -all
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