Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
dos.codes
Disposable
✓ Yes
Unknown
⚠ Yes
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-14 02:02:58 UTC · ↺ Refresh
MX Hostnames
- mail.dos.codes
MX Priorities
- mail.dos.codes: 10
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 15.204.10.226 ↩ mail.tbbbk.com
SOA Record
Raw SOA
ns1.name.com hostmaster.nsone.net 1761835492 43200 7200 1209600 3600
Primary NS (mname)
ns1.name.com
Admin Email (rname)
hostmaster@nsone.net
Serial
1761835492
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
ns1jsv.name.com
ns2knz.name.com
ns3dkz.name.com
ns4fpy.name.com
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:15.204.10.226 -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 4 chars (valid)
⚠ Public key too short (4 chars) — DKIM may be invalid.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 a mx ip4:15.204.10.226 -all
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