Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
preferredexterior.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 14:10:56 UTC · ↺ Refresh
MX Hostnames
- mail02.preferredexterior.com
- mail01.preferredexterior.com
MX Priorities
- mail02.preferredexterior.com: 10
- mail01.preferredexterior.com: 0
A / AAAA Records
- 216.119.71.164 (no PTR)
Mail Server IPs
- 24.187.253.106 ↩ ool-18bbfd6a.static.optonline.net
- 96.246.37.130 ↩ host.mtechsystemsinc.com
SOA Record
Raw SOA
dns0.zoneedit.com zone.zoneedit.com 1656524700 2400 360 1209600 300
Primary NS (mname)
dns0.zoneedit.com
Admin Email (rname)
zone@zoneedit.com
Serial
1656524700
Refresh
2400s
Retry
360s
Expire
1209600s
Minimum TTL
300s
Nameservers (NS)
ns12.zoneedit.com
t2.zoneedit.com
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:24.187.253.106 mx ip4:96.246.37.130 ip4:24.187.253.108 -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
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 mx ip4:24.187.253.106 mx ip4:96.246.37.130 ip4:24.187.253.108 -all
- google-site-verification=gcrR-MtQOgmBqMSpaL3sAuNaoYyDhlEmCvuf-do1_Ic
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