corpsyn.com

Valid Email Server

Domain Overview

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

Checked via [email protected] ยท 2026-03-21 05:18:41 UTC ยท โ†บ Refresh

MX Hostnames

  • corpsyn-com.mail.protection.outlook.com

MX Priorities

  • corpsyn-com.mail.protection.outlook.com: 10

A / AAAA Records

  • 141.193.213.21 (no PTR)

Mail Server IPs

  • 52.101.9.20 โ†ฉ mail-bl0pr02cu00604.inbound.protection.outlook.com
  • 52.101.41.183 โ†ฉ mail-byapr04cu00307.inbound.protection.outlook.com
  • 52.101.41.6 โ†ฉ mail-sj0pr03cu01406.inbound.protection.outlook.com
  • 52.101.9.0 โ†ฉ mail-bl2pr02cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA ns05.gcd-dns.com dns.jomax.net 2026022500 28800 7200 604800 600
Primary NS (mname)
ns05.gcd-dns.com
Admin Email (rname)
dns@jomax.net
Serial
2026022500
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns05.gcd-dns.com
ns06.gcd-dns.com

SPF Record

โœ“ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:sendgrid.net include:_spf.salesforce.com include:spf.zixsmbhosted.com include:spfhost.messageprovider.com include:servers.mcsv.net include:aspmx.pardot.com include:u1407410.wl161.sendgrid.net ~all
๐Ÿ“Š DNS lookups: 8/10
~ Soft fail (~all) โ€” moderate enforcement

DMARC Record

โœ“ Reject
v=DMARC1; p=reject; aspf=s; adkim=s
โœ“ Reject โ€” strongest protection
๐Ÿ“‹ SPF alignment: Strict ยท DKIM alignment: Strict
โš  No aggregate reports (rua= not set)

DKIM Selectors

โœ“ 5 found
selector1._domainkey
selector2._domainkey
k1._domainkey
s1._domainkey
s2._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

10 records
  • spf2.0/pra a mx senderidhost.messageprovider.com ~all
  • ue7hc4ls33a0qnnha25sob8uhh
  • uh8fl86ml3jitnkm29rctj5tek
  • SPFv=spf1 include:spf.protection.outlook.com include:sendgrid.net include:_spf.salesforce.com include:spf.zixsmbhosted.com include:spfhost.messageprovider.com include:servers.mcsv.net include:aspmx.pardot.com include:u1407410.wl161.sendgrid.net ~all
  • ZOOM_verify_7O7onOO7TyOw5qmJmfiYAA
  • q7uf6gqpi941ri2jto75q3boq5
  • 0812A580B3
  • google-site-verification=SC3kna3suwl8RbFz1pWGK8soe_17x_IrS2mCmlY_P0k
  • pardot887713=501e16ad5bb56595eb4e61a0cff21baf7cace40b685b0890319b2b2ae53e2715
  • pardot887713=74a4012ae93fc91a9dcce81efb4faf5e54acd7353a8efc956a0b59c01d50e2ed
Full email verification for corpsyn.com

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

SPF / DKIM / DMARC Get 1,000 Free Credits