Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rtcol.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-23 23:31:31 UTC · ↺ Refresh
MX Hostnames
- rtcol-com.mx.av-mx.com
MX Priorities
- rtcol-com.mx.av-mx.com: 10
A / AAAA Records
- 75.119.204.242 ↩ apache2-linus.pdx1-shared-a1-28.dreamhost.com
Mail Server IPs
- 150.136.204.204 ↩ mx.nrtc.syn-alias.com
SOA Record
Raw SOA
ns1-35.azure-dns.com azuredns-hostmaster.microsoft.com 2025070801 3600 300 2419200 300
Primary NS (mname)
ns1-35.azure-dns.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
2025070801
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns3-35.azure-dns.org
ns4-35.azure-dns.info
ns1-35.azure-dns.com
ns2-35.azure-dns.net
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf1.neonova.net ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected]; fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],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
2 records- SPFv=spf1 include:spf1.neonova.net ~all
- google-site-verification=52iTLw7W_7gLEaSNGCwiPEr4bJRr-sJhm6kNKWGNlB
Full email verification for rtcol.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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