stpauls.br

Valid Email Server

Domain Overview

DNS: โœ“ 2mo ago Checker: โœ“ 2mo ago
stpauls.br
Yes
โœ“ Yes
Outlook
No
No
โš  Yes
No
No

Checked via [email protected] ยท 2026-03-22 10:00:31 UTC ยท โ†บ Refresh

MX Hostnames

  • stpauls-br.mail.protection.outlook.com

MX Priorities

  • stpauls-br.mail.protection.outlook.com: 20

A / AAAA Records

  • 104.17.67.73 (no PTR)

Mail Server IPs

  • 52.101.11.7 โ†ฉ mail-sa9pr04cu00107.inbound.protection.outlook.com
  • 52.101.10.6 โ†ฉ mail-bn1pr21cu00106.inbound.protection.outlook.com
  • 52.101.40.6 โ†ฉ mail-cy1pr03cu00106.inbound.protection.outlook.com
  • 52.101.41.22 โ†ฉ mail-sj2pr05cu00406.inbound.protection.outlook.com
  • 2a01:111:f403:c927:: โ†ฉ mail-bn6pr21cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:c902:: โ†ฉ mail-sj2pr05cu00300.inbound.protection.outlook.com
  • 2a01:111:f403:c946::2 โ†ฉ mail-ch4pr04cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:f90f::1 โ†ฉ mail-sa9pr04cu00201.inbound.protection.outlook.com

SOA Record

Raw SOA dns1.ctitech.net.br postmaster.ctitech.net.br 2026031101 28800 3600 604800 300
Primary NS (mname)
dns1.ctitech.net.br
Admin Email (rname)
postmaster@ctitech.net.br
Serial
2026031101
Refresh
28800s
Retry
3600s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

dns2.ctitech.net.br
dns1.ctitech.net.br
dns3.ctitech.net.br
dns4.ctitech.net.br

SPF Record

โœ“ Strict (-all)
v=spf1 mx ip4:177.190.200.225/27 ip4:179.191.113.230 ip4:142.0.66.23 ip4:198.37.144.0/20 ip4:198.37.158.0/23 ip4:203.32.6.0/23 ip4:167.89.0.0/17 ip4:148.105.0.0/16 include:_spf.psm.knowbe4.com include:spf.protection.outlook.com include:spf.emailsignatures365.com -all
๐Ÿ“Š DNS lookups: 4/10
โœ“ Hard fail (-all) โ€” strict enforcement

DMARC Record

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

DKIM Selectors

โœ“ 2 found
s1._domainkey
s2._domainkey
โœ“ Public key: 392 chars (valid)
โœ“ DKIM properly configured for selector: s1

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

All TXT Records

7 records
  • google-gws-recovery-domain-verification=58129461
  • 5EX9pglSe5ftJYAsmvfLS/7DP7kRx0qA8lKOGySwSZcYuCjGo2EIFRfaTsbbKOdTNdxAFbmcgGTeQyy0ZmOlXg==
  • google-site-verification=uk-5Kh3WlEw_QtAxkryyhtdG41c6ZPZr_ba5D-7Veds
  • SPFv=spf1 mx ip4:177.190.200.225/27 ip4:179.191.113.230 ip4:142.0.66.23 ip4:198.37.144.0/20 ip4:198.37.158.0/23 ip4:203.32.6.0/23 ip4:167.89.0.0/17 ip4:148.105.0.0/16 include:_spf.psm.knowbe4.com include:spf.protection.outlook.com include:spf.emailsignatures365.com -all
  • MS=ms49589003
  • google-site-verification=lVot9tCkWVCL2pPnX84BuYNt8yCf8rDHmvIa8WbMJvY
  • apple-domain-verification=Ru3QJ5IHmWVxmuIF
Free ยท No signup required
Add email validation to your forms

Block disposable emails, validate MX records, detect role accounts โ€” unlimited, forever free.

<script src="https://check.verifyswift.com/"></script>
One line of code ยท Works on any site
See demo & docs
Deep verification
Full email verification for stpauls.br

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

No credit card required
Get 1,000 Free Credits