macdc.us

Valid Email Server
Domain Lookup › macdc.us

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
macdc.us
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-24 00:24:20 UTC · ↺ Refresh

MX Hostnames

  • mail.macdc.us

MX Priorities

  • mail.macdc.us: 10

A / AAAA Records

  • 207.246.254.191 (no PTR)

Mail Server IPs

  • 207.246.254.191 (no PTR)

SOA Record

Raw SOA ns1.nexcess.net hostmaster.macdc.us 1764686296 7200 2048 1048576 2560
Primary NS (mname)
ns1.nexcess.net
Admin Email (rname)
hostmaster@macdc.us
Serial
1764686296
Refresh
7200s
Retry
2048s
Expire
1048576s
Minimum TTL
2560s

Nameservers (NS)

ns4.nexcess.net
ns1.nexcess.net
ns2.nexcess.net
ns3.nexcess.net

SPF Record

✓ Soft Fail (~all)
v=spf1 +a +mx +ip4:207.246.254.191 include:relay.mailchannels.net ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

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

2 records
  • SPFv=spf1 +a +mx +ip4:207.246.254.191 include:relay.mailchannels.net ~all
  • google-site-verification=jFFTAdjXOAkBFOV1G86vWmEYrHw9FfMAEXa3aUG1MJI
Full email verification for macdc.us

Run SMTP check, SPF/DKIM/DMARC and catch-all detection.

SPF / DKIM / DMARC Get 1,000 Free Credits