sirdev.com

Valid Email Server
Domain Lookup › sirdev.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
sirdev.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-18 16:10:39 UTC · ↺ Refresh

MX Hostnames

  • mailstore1.secureserver.net
  • sirdev-com.mail.protection.outlook.com
  • smtp.secureserver.net

MX Priorities

  • mailstore1.secureserver.net: 10
  • smtp.secureserver.net: 0
  • sirdev-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 192.185.35.30

Mail Server IPs

  • 216.69.141.114 ↩ osplibsmtp03-v02.prod.phx3.secureserver.net
  • 216.69.141.78 ↩ osplibsmtp01-v02.prod.phx3.secureserver.net
  • 216.69.141.162 ↩ osplibsmtp02-v02.prod.phx3.secureserver.net
  • 216.69.141.84 ↩ osplibsmtp02-v01.prod.phx3.secureserver.net
  • 216.69.141.71 ↩ osplibsmtp01-v01.prod.phx3.secureserver.net
  • 216.69.141.113 ↩ osplibsmtp03-v01.prod.phx3.secureserver.net
  • 52.101.194.0 ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
  • 52.101.41.180 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
  • 52.101.41.54 ↩ mail-sj2pr05cu00506.inbound.protection.outlook.com
  • 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
  • 2a01:111:f403:c92c::2
  • 2a01:111:f403:c946::3
  • 2a01:111:f403:c922::2
  • 2a01:111:f403:c927::1

SOA Record

Raw SOA ns8165.hostgator.com dnsadmin.gator4083.hostgator.com 2026020401 86400 7200 3600000 86400
Primary NS (mname)
ns8165.hostgator.com
Admin Email (rname)
dnsadmin@gator4083.hostgator.com
Serial
2026020401
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
86400s

Nameservers (NS)

ns3483.hostgator.com
ns3484.hostgator.com

SPF Record

✓ Strict (-all)
v=spf1 +ip4:192.185.4.95 +include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

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 +ip4:192.185.4.95 +include:spf.protection.outlook.com -all
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
See demo & docs
Deep verification
Full email verification for sirdev.com

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

No credit card required
Get 1,000 Free Credits