Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
quarzum.com.mx
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 21:31:29 UTC · ↺ Refresh
MX Hostnames
- mail.quarzum.com.mx
MX Priorities
- mail.quarzum.com.mx: 0
A / AAAA Records
- 23.21.123.17 ↩ ec2-23-21-123-17.compute-1.amazonaws.com
Mail Server IPs
- 66.70.216.208 ↩ mx208.fl08.wiroos.host
SOA Record
Raw SOA
dns1.stabletransit.com ipadmin.stabletransit.com 1575386197 3600 300 1814400 300
Primary NS (mname)
dns1.stabletransit.com
Admin Email (rname)
ipadmin@stabletransit.com
Serial
1575386197
Refresh
3600s
Retry
300s
Expire
1814400s
Minimum TTL
300s
Nameservers (NS)
dns1.stabletransit.com
dns2.stabletransit.com
SPF Record
✓ Strict (-all)
v=spf1 +a +mx -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 +a +mx -all
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