Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
oplex.us
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-17 23:43:50 UTC · ↺ Refresh
MX Hostnames
- smtp.google.com
MX Priorities
- smtp.google.com: 1
A / AAAA Records
- 76.76.21.21 (no PTR)
Mail Server IPs
- 64.233.180.26 ↩ on-in-f26.1e100.net
- 142.251.16.27 ↩ bl-in-f27.1e100.net
- 142.251.167.27 ↩ ww-in-f27.1e100.net
- 64.233.180.27 ↩ on-in-f27.1e100.net
- 142.251.167.26 ↩ ww-in-f26.1e100.net
- 2607:f8b0:4004:c1d::1b ↩ ww-in-f27.1e100.net
- 2607:f8b0:4004:c21::1a ↩ pe-in-f26.1e100.net
- 2607:f8b0:4004:c1d::1a ↩ ww-in-f26.1e100.net
- 2607:f8b0:4004:c17::1b ↩ bl-in-f27.1e100.net
SOA Record
Raw SOA
ns-cloud-b1.googledomains.com cloud-dns-hostmaster.google.com 11 21600 3600 259200 300
Primary NS (mname)
ns-cloud-b1.googledomains.com
Admin Email (rname)
cloud-dns-hostmaster@google.com
Serial
11
Refresh
21600s
Retry
3600s
Expire
259200s
Minimum TTL
300s
Nameservers (NS)
ns-cloud-b4.googledomains.com
ns-cloud-b2.googledomains.com
ns-cloud-b3.googledomains.com
ns-cloud-b1.googledomains.com
SPF Record
✗ MissingNo SPF record — domain is unprotected against spoofing.
⚠ No SPF record found. Email servers cannot verify authorized senders.
DMARC Record
✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- google-site-verification=ptH7xksQ1B0ibtiCRlAJblPaTaivN70qsVYE_GTYMTM
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