Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rkco.com
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-27 00:20:42 UTC · ↺ Refresh
MX Hostnames
- mxa-00120b02.gslb.pphosted.com
- mxb-00120b02.gslb.pphosted.com
MX Priorities
- mxb-00120b02.gslb.pphosted.com: 2
- mxa-00120b02.gslb.pphosted.com: 2
A / AAAA Records
- 8.27.163.82 (no PTR)
Mail Server IPs
- 67.231.156.124 ↩ mx0b-00120b02.pphosted.com
SOA Record
Raw SOA
pdns80.ultradns.com hostmaster.rivint.com 2014102921 43200 1800 604800 21600
Primary NS (mname)
pdns80.ultradns.com
Admin Email (rname)
hostmaster@rivint.com
Serial
2014102921
Refresh
43200s
Retry
1800s
Expire
604800s
Minimum TTL
21600s
Nameservers (NS)
pdns80.ultradns.biz
pdns80.ultradns.com
pdns80.ultradns.net
pdns80.ultradns.org
SPF Record
✓ Strict (-all)
v=spf1 mx -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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
1 record- SPFv=spf1 mx -all
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