jstart.org

Valid Email Server

Domain Overview

DNS: โœ“ 2mo ago Checker: โœ“ 2mo ago
jstart.org
Yes
โœ“ Yes
Outlook
No
No
โš  Yes
No
No
Did you mean: [email protected]

Checked via [email protected] ยท 2026-03-25 21:11:46 UTC ยท โ†บ Refresh

MX Hostnames

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

MX Priorities

  • jstart-org.mail.protection.outlook.com: 0

A / AAAA Records

  • 104.21.37.65 (no PTR)
  • 172.67.205.13 (no PTR)
  • 2606:4700:3033::6815:2541
  • 2606:4700:3035::ac43:cd0d

Mail Server IPs

  • 52.101.9.20 โ†ฉ mail-bl0pr02cu00604.inbound.protection.outlook.com
  • 52.101.40.2 โ†ฉ mail-cy1pr05cu00402.inbound.protection.outlook.com
  • 52.101.10.14 โ†ฉ mail-bn6pr04cu00206.inbound.protection.outlook.com
  • 52.101.9.0 โ†ฉ mail-bl2pr02cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c903::3 โ†ฉ mail-mw2pr02cu00503.inbound.protection.outlook.com
  • 2a01:111:f403:c922::2 โ†ฉ mail-bl0pr02cu00702.inbound.protection.outlook.com
  • 2a01:111:f403:f90b:: โ†ฉ mail-bn6pr04cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:f90c:: โ†ฉ mail-sn1pr03cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA haley.ns.cloudflare.com dns.cloudflare.com 2399868760 10000 2400 604800 1800
Primary NS (mname)
haley.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399868760
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

haley.ns.cloudflare.com
zod.ns.cloudflare.com

SPF Record

โœ“ Strict (-all)
v=spf1 ip4:216.57.88.252/32 ip4:50.77.31.52/32 ip4:35.212.1.197/32 ip4:50.77.31.53/32 ip4:216.57.88.250/32 ip4:50.77.31.49/32 mx include:spf.protection.outlook.com include:_spf.intacct.com include:emailsrvr.com include:_spf.salesforce.com include:_spfprod.ngpvan.com include:spf.constantcontact.com -all
๐Ÿ“Š DNS lookups: 7/10
โœ“ Hard fail (-all) โ€” strict enforcement

DMARC Record

โœ— p=none
v=DMARC1; p=none; pct=100; rua=mailto:[email protected]; sp=none; aspf=r;
โš  p=none โ€” monitoring only, no enforcement
๐Ÿ“‹ SPF alignment: Relaxed ยท DKIM alignment: Relaxed
๐Ÿ“ง Reports โ†’ mailto:[email protected]
โ†ณ Subdomain policy: none

DKIM Selectors

โœ“ 3 found
selector1._domainkey
selector2._domainkey
k1._domainkey
โœ“ Public key: 216 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

11 records
  • adobe-idp-site-verification=de884c2c742ec2c042398ae279de1135dc335e46178d5db38685d06d7c723a5e
  • amazon-business-verification=f90654f3b5527702d2b2992a72ee76ac778b8bd12a1471fa38ad91b797a2c8ec
  • apple-domain-verification=rkQbfFAWKOKShg9n
  • asv=8ccdb8eafd8d24e37873b67a708cc8e6
  • canva-site-verification=ky63U7TrUMHz-Sv15nFaMw
  • facebook-domain-verification=7h447wqthdpcbt8f66tzpgdyngu8lm
  • google-site-verification=FgnGo7E6FjLYlRNGkqUlatzsXJ7h7kwbqNMoRQgGRjA
  • google-site-verification=fjt1CpIhd5ETlC8vauGvlA7D2dDcW8i3rKWxUkTzomk
  • have-i-been-pwned-verification=9a7b8ba87736b18c0e2dda77c1053002
  • SPFv=spf1 ip4:216.57.88.252/32 ip4:50.77.31.52/32 ip4:35.212.1.197/32 ip4:50.77.31.53/32 ip4:216.57.88.250/32 ip4:50.77.31.49/32 mx include:spf.protection.outlook.com include:_spf.intacct.com include:emailsrvr.com include:_spf.salesforce.com include:_spfprod.ngpvan.com include:spf.constantcontact.com -all
  • G7vgWj5OOUBUphr2FCtOgK2LJf6VlvusK6lEDgTotk1FSI0Wa0LnNaSI5shzTjeRTba070BWNJ3bXy7kvqcXug==
Full email verification for jstart.org

Run SMTP check, SPF/DKIM/DMARC and catch-all detection.

SPF / DKIM / DMARC Get 1,000 Free Credits