Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
uplb.edu.ph
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-26 15:02:25 UTC · ↺ Refresh
MX Hostnames
- smtp.uplb.edu.ph
MX Priorities
- smtp.uplb.edu.ph: 1
A / AAAA Records
- 104.20.31.145 (no PTR)
- 172.66.167.22 (no PTR)
- 2606:4700:10::6814:1f91 (no PTR)
- 2606:4700:10::ac42:a716 (no PTR)
Mail Server IPs
- 202.92.144.15 ↩ new-rimas.uplb.edu.ph
SOA Record
Raw SOA
brian.ns.cloudflare.com dns.cloudflare.com 2400017708 10000 2400 604800 1800
Primary NS (mname)
brian.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400017708
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
zoe.ns.cloudflare.com
brian.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 mx -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s; rua=mailto:[email protected],mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 250 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
4 records- uplb.edu.ph, serving your domain
- SPFv=spf1 mx -all
- google-site-verification=CrvPF3_nZW0fj8n7ZaF2WAZFX15ijS2S8L2quPdExd8
- google-site-verification=XditZsBkepDgfoKXxHD4KWtQxs2zAQU16SgC5VDWhQw
Full email verification for uplb.edu.ph
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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