Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
markchinmd.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-14 04:34:21 UTC · ↺ Refresh
MX Hostnames
- mx1.paubox.com
MX Priorities
- mx1.paubox.com: 0
A / AAAA Records
- 72.167.132.223 ↩ 223.132.167.72.host.secureserver.net
Mail Server IPs
- 54.69.73.61 ↩ smtp1.paubox.com
- 54.69.172.93 ↩ smtp3.paubox.com
- 54.69.65.158 ↩ smtp2.paubox.com
SOA Record
Raw SOA
ns0.dnsmadeeasy.com dns.dnsmadeeasy.com 2008010167 43200 3600 1209600 180
Primary NS (mname)
ns0.dnsmadeeasy.com
Admin Email (rname)
dns@dnsmadeeasy.com
Serial
2008010167
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s
Nameservers (NS)
ns1.psscloud.com
ns3.psscloud.com
ns2.psscloud.com
ns4.psscloud.com
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.paubox.com include:sendgrid.net -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 include:_spf.paubox.com include:sendgrid.net -all
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