graystoneonline.com

Valid Email Server

Domain Overview

DNS: โœ“ 2mo ago Checker: โœ“ 2mo ago
graystoneonline.com
Yes
โœ“ Yes
Outlook
No
No
โš  Yes
No
No

Checked via [email protected] ยท 2026-03-19 08:44:45 UTC ยท โ†บ Refresh

MX Hostnames

  • graystoneonline-com.mail.protection.outlook.com

MX Priorities

  • graystoneonline-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 35.215.91.159 โ†ฉ 159.91.215.35.bc.googleusercontent.com

Mail Server IPs

  • 52.101.41.6 โ†ฉ mail-sj0pr03cu01406.inbound.protection.outlook.com
  • 52.101.9.21 โ†ฉ mail-bl2pr04cu00205.inbound.protection.outlook.com
  • 52.101.9.20 โ†ฉ mail-bl0pr02cu00604.inbound.protection.outlook.com
  • 52.101.9.12 โ†ฉ mail-bl0pr05cu00504.inbound.protection.outlook.com
  • 2a01:111:f403:f90d::1 โ†ฉ mail-sn1pr0501cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:c936:: โ†ฉ mail-cy1pr05cu00400.inbound.protection.outlook.com
  • 2a01:111:f403:f90d:: โ†ฉ mail-sn1pr0501cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f90a::1 โ†ฉ mail-bn8pr03cu00201.inbound.protection.outlook.com

SOA Record

Raw SOA ns27.domaincontrol.com dns.jomax.net 2026030304 28800 7200 604800 3600
Primary NS (mname)
ns27.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026030304
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns27.domaincontrol.com
ns28.domaincontrol.com

SPF Record

โœ“ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.emailsignatures365.com include:aspmx.pardot.com include:_spf.salesforce.com include:_spf.psm.knowbe4.com include:secureserver.net -all
๐Ÿ“Š DNS lookups: 6/10
โœ“ Hard fail (-all) โ€” strict enforcement

DMARC Record

โœ— p=none
v=DMARC1; p=none; rua=mailto:[email protected],mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected],mailto:[email protected]; fo=1
โš  p=none โ€” monitoring only, no enforcement
๐Ÿ“‹ SPF alignment: Relaxed ยท DKIM alignment: Relaxed
๐Ÿ“ง Reports โ†’ mailto:[email protected],mailto:[email protected],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
  • knowbe4-site-verification=6b550ab2b2f3b033e1bb8dbb86407f21
  • MS=ms84188987
  • SPFv=spf1 include:spf.protection.outlook.com include:spf.emailsignatures365.com include:aspmx.pardot.com include:_spf.salesforce.com include:_spf.psm.knowbe4.com include:secureserver.net -all
  • google-site-verification=9lNg7-2jCUwYAOdkhCsStYGs1lqr-Dqh51MYd506BVg
  • sending_domain933763=166dcddb3ee681a2ef5b3a577d466745deae78e9998f72d83593beb38a70deb5
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