Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
colsd.org
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-29 19:04:20 UTC · ↺ Refresh
MX Hostnames
- mailstream-central.mxrecord.mx
- mailstream-east.mxrecord.io
- mailstream-west.mxrecord.io
MX Priorities
- mailstream-central.mxrecord.mx: 1
- mailstream-west.mxrecord.io: 5
- mailstream-east.mxrecord.io: 10
A / AAAA Records
- 34.238.178.141 ↩ ec2-34-238-178-141.compute-1.amazonaws.com
Mail Server IPs
- 172.65.64.78 (no PTR)
- 172.65.220.210 (no PTR)
- 172.65.213.128 (no PTR)
SOA Record
Raw SOA
ns47.domaincontrol.com dns.jomax.net 2026020300 28800 7200 604800 600
Primary NS (mname)
ns47.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026020300
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns48.domaincontrol.com
ns47.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:152.157.6.0/24 include:_spf.google.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;rua=mailto:[email protected],mailto:[email protected];ruf=mailto:[email protected],mailto:[email protected];fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 1 found
google._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- SPFv=spf1 mx ip4:152.157.6.0/24 include:_spf.google.com -all
- ZOOM_verify_JmG5ZLtSWh1jKhpSLcFlPb
- apple-domain-verification=Nv3XBPyjgpBOqdck
- apple-domain-verification=zyUzreodFJsqO3pe
Full email verification for colsd.org
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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