Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cmtc.us
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-21 14:08:00 UTC · ↺ Refresh
MX Hostnames
- mail.cmtc.us
MX Priorities
- mail.cmtc.us: 10
A / AAAA Records
- 51.79.45.180 ↩ gw1.ahs5.r4l.com
Mail Server IPs
- 51.79.45.180 ↩ gw1.ahs5.r4l.com
SOA Record
Raw SOA
ns1.r4l.com support.register4less.com 1712952925 3600 1800 1814400 3600
Primary NS (mname)
ns1.r4l.com
Admin Email (rname)
support@register4less.com
Serial
1712952925
Refresh
3600s
Retry
1800s
Expire
1814400s
Minimum TTL
3600s
Nameservers (NS)
ns1.r4l.com
ns2.r4l.com
SPF Record
✓ Soft Fail (~all)
v=spf1 redirect=ahs5.r4l.com
📊 DNS lookups: 1/10
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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
1 record- SPFv=spf1 redirect=ahs5.r4l.com
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