Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
trinitycoolinginc.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-06-10 02:50:05 UTC · ↺ Refresh
MX Hostnames
- mx2.mailchannels.net
- mx1.mailchannels.net
MX Priorities
- mx1.mailchannels.net: 0
- mx2.mailchannels.net: 0
A / AAAA Records
- 172.67.214.75 (no PTR)
- 104.21.45.126 (no PTR)
- 2606:4700:3036::6815:2d7e (no PTR)
- 2606:4700:3030::ac43:d64b (no PTR)
Mail Server IPs
- 54.187.177.89 ↩ ec2-54-187-177-89.us-west-2.compute.amazonaws.com
SOA Record
Raw SOA
hera.ns.cloudflare.com dns.cloudflare.com 2405723369 10000 2400 604800 1800
Primary NS (mname)
hera.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2405723369
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
hera.ns.cloudflare.com
norman.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.mailersend.net mx include:netblocks.dreamhost.com include:relay.mailchannels.net -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo 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
2 records- SPFv=spf1 include:_spf.mailersend.net mx include:netblocks.dreamhost.com include:relay.mailchannels.net -all
- google-site-verification=_G2M_LH2L-xG4nwVG_AYZA8tqI_BUGm3PSz1pwYGkng
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