Domain Overview
DNS: ✓ 2d ago
Checker: ✓ 2d ago
once-email.com
Disposable
✓ Yes
Unknown
⚠ Yes
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-05-23 11:36:08 UTC · ↺ Refresh
MX Hostnames
- mail.once-email.com
MX Priorities
- mail.once-email.com: 10
A / AAAA Records
- 104.21.66.245 (no PTR)
- 172.67.166.134 (no PTR)
- 2606:4700:3037::6815:42f5 (no PTR)
- 2606:4700:3036::ac43:a686 (no PTR)
Mail Server IPs
- 97.64.81.152 ↩ 97.64.81.152.16clouds.com
SOA Record
Raw SOA
maxim.ns.cloudflare.com dns.cloudflare.com 2404363809 10000 2400 604800 1800
Primary NS (mname)
maxim.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2404363809
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
val.ns.cloudflare.com
maxim.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 mx ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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
3 records- google-site-verification=_skzLBFu7Y0EYTeMJPwzUcdbEhNI1RDcZW5xvam-B_w
- google-site-verification=lJxVr2uBVLWU1kFaGQMwQybZ-o1CVIFTMe-i7azUc-U
- SPFv=spf1 mx ~all
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