Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
customerfirstit.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 05:42:00 UTC · ↺ Refresh
MX Hostnames
- mx2.voipster.org
- mx1.voipster.org
MX Priorities
- mx2.voipster.org: 20
- mx1.voipster.org: 10
A / AAAA Records
- 45.45.168.37 ↩ hcp.as32030.net
Mail Server IPs
- 192.40.141.7 ↩ mx2.voipster.org
- 2620:128:7000::7777 ↩ mx2.voipster.org
- 192.40.140.7 ↩ mx1.voipster.org
- 2620:128:7002:1::7777 ↩ mx1.voipster.org
SOA Record
Raw SOA
ns1.voipster.org netops.voipster.org 2024020101 21600 1800 1209600 10800
Primary NS (mname)
ns1.voipster.org
Admin Email (rname)
netops@voipster.org
Serial
2024020101
Refresh
21600s
Retry
1800s
Expire
1209600s
Minimum TTL
10800s
Nameservers (NS)
ns2.voipster.org
ns6.voipster.org
ns3.voipster.org
ns1.voipster.org
ns4.voipster.org
ns5.voipster.org
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:192.40.141.32 ip4:192.40.140.21 ip4:192.40.141.28 ip4:192.40.140.7 ip4:192.40.141.7 -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; adkim=r; aspf=r; pct=100; rf=afrf; ri=86400; sp=reject
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ 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
1 record- SPFv=spf1 a mx ip4:192.40.141.32 ip4:192.40.140.21 ip4:192.40.141.28 ip4:192.40.140.7 ip4:192.40.141.7 -all
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