usfirst.org

Valid Email Server
Live data โ€” DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: โšก live Checker: โšก live
usfirst.org
Yes
โœ“ Yes
Outlook
No
No
โš  Yes
No
No

Checked via [email protected] ยท 2026-05-21 01:03:53 UTC ยท โ†บ Refresh

MX Hostnames

  • usfirst-org.mail.protection.outlook.com

MX Priorities

No priority data.

A / AAAA Records

  • 192.124.249.158

Mail Server IPs

No IPs resolved.

SOA Record

No SOA record found.

Nameservers (NS)

ns-1775.awsdns-29.co.uk
ns-20.awsdns-02.com
ns-724.awsdns-26.net
ns-1078.awsdns-06.org

SPF Record

โœ“ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com ip4:64.222.71.132 all
๐Ÿ“Š DNS lookups: 1/10

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]
~ Quarantine โ€” good protection (failing mail goes to spam)
๐Ÿ“‹ SPF alignment: Relaxed ยท DKIM alignment: Relaxed
๐Ÿ“ง Reports โ†’ mailto:[email protected]

DKIM Selectors

โœ“ 2 found
selector1._domainkey
selector2._domainkey
โœ“ Public key: 392 chars (valid)
โœ“ DKIM properly configured for selector: selector1

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

All TXT Records

5 records
  • emjoi8pg8d7s2j4p0s77tb0ovf
  • google-site-verification=xK0tlZQnNxudl8fTgGWEISLR-0VNxdUKNbP2VPhh5ec
  • SPFv=spf1 include:spf.protection.outlook.com ip4:64.222.71.132 all
  • BcBfZ/WAPQIYgefpOPrm3iTi2iPcnx9puFIsDAEVF9BTFA0y7z0ScK/h0aa3WN9yefEQHtAq/8EfQqf+D2LwKA==
  • MS=ms96441857
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