mactac.com

Valid Email Server

Domain Overview

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

Checked via [email protected] ยท 2026-03-27 00:56:52 UTC ยท โ†บ Refresh

MX Hostnames

  • mactac-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 52.3.163.37 โ†ฉ ec2-52-3-163-37.compute-1.amazonaws.com

Mail Server IPs

  • 52.101.41.26 โ†ฉ mail-sj0pr03cu01702.inbound.protection.outlook.com
  • 52.101.11.7 โ†ฉ mail-sa9pr04cu00107.inbound.protection.outlook.com
  • 52.101.11.13 โ†ฉ mail-sn1pr0501cu00205.inbound.protection.outlook.com
  • 52.101.194.13 โ†ฉ mail-ch0pr04cu00605.inbound.protection.outlook.com
  • 2a01:111:f403:f802::3 โ†ฉ mail-sj0pr03cu01403.inbound.protection.outlook.com
  • 2a01:111:f403:f90b:: โ†ฉ mail-bn6pr04cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:f804::2 โ†ฉ mail-co1pr05cu00402.inbound.protection.outlook.com
  • 2a01:111:f403:c803:: โ†ฉ mail-bn1pr21cu00200.inbound.protection.outlook.com

SOA Record

Raw SOA ns07.domaincontrol.com dns.jomax.net 2026020401 28800 7200 604800 86400
Primary NS (mname)
ns07.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026020401
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
86400s

Nameservers (NS)

ns08.domaincontrol.com
ns07.domaincontrol.com

SPF Record

โœ“ Strict (-all)
v=spf1 ip4:12.176.109.132 ip4:193.240.157.247 ip4:12.207.74.240 ip4:12.207.74.241 ip4:12.28.245.166 ip4:12.28.245.178 include:spf.protection.outlook.com include:secureserver.net include:mailgun.org include:_spf.messagegears.net -all
๐Ÿ“Š DNS lookups: 4/10
โœ“ Hard fail (-all) โ€” strict enforcement

DMARC Record

โœ“ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; adkim=r; aspf=r
โœ“ Reject โ€” strongest protection
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: 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

5 records
  • SPFv=spf1 ip4:12.176.109.132 ip4:193.240.157.247 ip4:12.207.74.240 ip4:12.207.74.241 ip4:12.28.245.166 ip4:12.28.245.178 include:spf.protection.outlook.com include:secureserver.net include:mailgun.org include:_spf.messagegears.net -all
  • knowbe4-site-verification=4d7e61d7dedf96f97280cfb21e5ccb4e
  • google-site-verification=RYZUMpIHltgao8NhoKEblDMsERJWCIboOn80hWbTtxk
  • apple-domain-verification=DIl5VvJQbWOxdwZ8
  • hVZTVKpTDz9rZUGOPf5SZv32gSYoRDiJbo99fhkJ+3/LJiqgtqPSqxE8h7BrOzVTki+3/C3UybsTLs68QS4k5g==
Full email verification for mactac.com

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

SPF / DKIM / DMARC Get 1,000 Free Credits