opnsc.com

Valid Email Server
Domain Lookup › opnsc.com
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
opnsc.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-09-23 09:55:42 UTC · ↺ Refresh

Add email validation to your forms — free

Add our free script to block 10,000+ disposable domains + perform other checks. No signup, unlimited checks.

MX validation Disposable detection Role accounts
Add to your signup form
<script src="https://check.verifyswift.com/"></script>
One line · No registration · See full docs & demo → · Customize →

MX Hostnames

  • mail.opnsc.com

MX Priorities

  • mail.opnsc.com: 0

A / AAAA Records

  • 195.250.27.45 ↩ s3449.mex1.stableserver.net

Mail Server IPs

  • 195.250.27.45 ↩ s3449.mex1.stableserver.net

SOA Record

Raw SOA ns1.mysecurecloudhost.com servers.mysecurecloudhost.com 2026090401 3600 1800 1209600 86400
Primary NS (mname)
ns1.mysecurecloudhost.com
Admin Email (rname)
servers@mysecurecloudhost.com
Serial
2026090401
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns3.mysecurecloudhost.com
ns1.mysecurecloudhost.com
ns2.mysecurecloudhost.com
ns4.mysecurecloudhost.com

SPF Record

✓ Strict (-all)
v=spf1 +a +mx +include:relay.mailchannels.net +include:spf.antispamcloud.com include:spf.protection.outlook.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1;p=reject;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

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

4 records
  • _globalsign-domain-verification=bgw3tcf3TIxvWBDsHmYS3q8LpvXUl_8xpdKGB8xclt
  • SPFv=spf1 +a +mx +include:relay.mailchannels.net +include:spf.antispamcloud.com include:spf.protection.outlook.com -all
  • MS=7A0516B267C12FE606F892EF0E8BCDA075A8A871
  • _globalsign-domain-verification=6PMaFwtAi1RiIpSCQUyFyfCTOE866-kW28C5OAQ-5E
Free · No signup required
Add email validation to your forms

Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.

<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site · Customize →
See demo & docs
Deep verification
Full email verification for opnsc.com

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

No credit card required
Get 1,000 Free Credits