Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
argencolhvac.com
Disposable
✓ Yes
Unknown
⚠ Yes
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 12:55:58 UTC · ↺ Refresh
MX Hostnames
- mx.yandex.net
MX Priorities
- mx.yandex.net: 10
A / AAAA Records
- 174.138.179.166 (no PTR)
Mail Server IPs
- 77.88.21.249 ↩ mxfront.stable.qloud-b.yandex.net
- 2a02:6b8::311 ↩ mxfront.stable.qloud-b.yandex.net
SOA Record
Raw SOA
vda3100a.trouble-free.net hostmaster.argencolhvac.com 2026032303 3600 3600 1209600 86400
Primary NS (mname)
vda3100a.trouble-free.net
Admin Email (rname)
hostmaster@argencolhvac.com
Serial
2026032303
Refresh
3600s
Retry
3600s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
vda3100b.trouble-free.net
vda3100a.trouble-free.net
SPF Record
✓ Soft Fail (~all)
v=spf1 redirect=_spf.yandex.net
📊 DNS lookups: 1/10
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 redirect=_spf.yandex.net
- yandex-verification: d54faba94a687a84
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