Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
polarcomm.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-06-03 09:46:52 UTC · ↺ Refresh
MX Hostnames
- mx01.pkrv.polarcomm.net
MX Priorities
- mx01.pkrv.polarcomm.net: 10
A / AAAA Records
- 141.193.213.20 (no PTR)
- 141.193.213.21 (no PTR)
Mail Server IPs
- 66.231.102.80 ↩ mail.polarcomm.com
SOA Record
Raw SOA
ns1.pkrv.polarcomm.net sysadmin.polarcomm.com 542411330 10800 3600 604800 86400
Primary NS (mname)
ns1.pkrv.polarcomm.net
Admin Email (rname)
sysadmin@polarcomm.com
Serial
542411330
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
ns1.pkrv.polarcomm.net
ns1.edbg.polarcomm.net
SPF Record
✓ Strict (-all)
v=spf1 mx a ip4:66.231.102.0/24 ip4:66.231.96.0/24 ip4:216.196.75.0/25 ip4:69.72.38.202 -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;sp=reject;pct=100;adkim=r;aspf=s;ri=86400;
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: reject
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- wpe-verification=polarcomm
- SPFv=spf1 mx a ip4:66.231.102.0/24 ip4:66.231.96.0/24 ip4:216.196.75.0/25 ip4:69.72.38.202 -all
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