Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
xiber.net
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-26 02:15:39 UTC · ↺ Refresh
MX Hostnames
- mx2-us.emailsecurity.app
- mx1-us.emailsecurity.app
MX Priorities
- mx2-us.emailsecurity.app: 20
- mx1-us.emailsecurity.app: 10
A / AAAA Records
- 172.98.130.227 (no PTR)
Mail Server IPs
- 172.212.4.33 ↩ mx1-us.emailsecurity.app
- 40.121.188.167 ↩ mx1-us.emailsecurity.app
SOA Record
Raw SOA
ns-1687.awsdns-18.co.uk awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1687.awsdns-18.co.uk
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-192.awsdns-24.com
ns-941.awsdns-53.net
ns-1109.awsdns-10.org
ns-1687.awsdns-18.co.uk
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf1.emailsecurity.app include:mailgun.org -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
google._domainkey
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- ppe-df8eaf5d2e2006e214164d72aaefe0343b653644
- SPFv=spf1 include:spf.protection.outlook.com include:spf1.emailsecurity.app include:mailgun.org -all
- 1F0574A409
- MS=ms82538924
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