Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
hefnerplumbing.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-17 22:39:39 UTC · ↺ Refresh
MX Hostnames
- netsourceinc-mx2.titanhq.com
- netsourceinc-mx1.titanhq.com
MX Priorities
- netsourceinc-mx1.titanhq.com: 1
- netsourceinc-mx2.titanhq.com: 1
A / AAAA Records
- 206.196.110.74 ↩ host.ocalacloud.com
Mail Server IPs
- 3.131.225.49 ↩ us4-smtp1.titanhq.com
- 3.23.0.105 ↩ us4-smtp2.titanhq.com
- 3.147.24.97 ↩ us4-smtp1.titanhq.com
- 3.20.154.217 ↩ us4-smtp2.titanhq.com
SOA Record
Raw SOA
buck.ns.cloudflare.com dns.cloudflare.com 2395517532 10000 2400 604800 1800
Primary NS (mname)
buck.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2395517532
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
buck.ns.cloudflare.com
chan.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.nsource.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; aspf=s; adkim=s; ri=604800; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
s1._domainkey
⚠ Public key (p=) missing in DKIM record for selector s1.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 include:_spf.nsource.com -all
- MS=ms30296316
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