harlingenlibrary.com

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

Domain Overview

DNS: ⚡ live Checker: ⚡ live
harlingenlibrary.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-06-03 09:48:34 UTC · ↺ Refresh

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MX Hostnames

  • harlingenlibrary-com.mx1.arsmtp.com
  • harlingenlibrary-com.mx2.arsmtp.com

MX Priorities

  • harlingenlibrary-com.mx2.arsmtp.com: 20
  • harlingenlibrary-com.mx1.arsmtp.com: 10

A / AAAA Records

  • 209.17.116.163 (no PTR)

Mail Server IPs

  • 8.19.118.24 ↩ server285.appriver.com
  • 8.31.233.154 ↩ server284.appriver.com

SOA Record

Raw SOA ns47.worldnic.com namehost.worldnic.com 126050410 10800 3600 604800 3600
Primary NS (mname)
ns47.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126050410
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns48.worldnic.com
ns47.worldnic.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

6 records
  • 9aa06f5a003d592c7607d900504da8d2
  • SPFv=spf1 include:spf.protection.outlook.com ~all
  • WU8qIfKl3zFPNNRi+Pe84Q==
  • MS=ms25018469
  • knowbe4-site-verification=d47943a1e411d622354ad296e96838f0
  • harlingenlibrary-com.mail.protection.outlook.com
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