Domain Overview
DNS: ✓ 1d ago
Checker: ✓ 1d ago
americanfiltration.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-19 15:07:21 UTC · ↺ Refresh
MX Hostnames
- mail.dustlessair.com
MX Priorities
- mail.dustlessair.com: 10
A / AAAA Records
- 67.79.36.13 ↩ syn-067-079-036-013.biz.spectrum.com
Mail Server IPs
- 67.79.36.10 ↩ mail.dustlessair.com
SOA Record
Raw SOA
pearl.ns.cloudflare.com dns.cloudflare.com 2402651888 10000 2400 604800 1800
Primary NS (mname)
pearl.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2402651888
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
rocky.ns.cloudflare.com
pearl.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 mx a:sendgrid.net ip4:67.79.36.10 include:sendgrid.net -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=quarantine; fo=0:1:d:s;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
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 a:sendgrid.net ip4:67.79.36.10 include:sendgrid.net -all
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