Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
optimal.com.ph
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-23 06:34:41 UTC · ↺ Refresh
MX Hostnames
- mail.optimal.com.ph
MX Priorities
- mail.optimal.com.ph: 0
A / AAAA Records
- 50.115.18.138 ↩ super-mx06.cdtsrv.com
Mail Server IPs
- 50.115.18.138 ↩ super-mx06.cdtsrv.com
SOA Record
Raw SOA
ns3.cleverdot.com cleverdot.gmail.com 2026032301 3600 1800 1209600 86400
Primary NS (mname)
ns3.cleverdot.com
Admin Email (rname)
cleverdot@gmail.com
Serial
2026032301
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns4.cleverdot.com
ns3.cleverdot.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:50.115.18.125 include:spf.filteredmx.net ip4:50.115.18.135 +a +mx +ip4:50.115.18.138 -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;sp=reject;adkim=s;aspf=s;pct=100;fo=0;rf=afrf;ri=86400;ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: reject
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 ip4:50.115.18.125 include:spf.filteredmx.net ip4:50.115.18.135 +a +mx +ip4:50.115.18.138 -all
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