csu.com.br

Valid Email Server
Domain Lookup › csu.com.br

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
csu.com.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-04-03 04:11:59 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

  • csu-com-br.mail.protection.outlook.com: 10

A / AAAA Records

  • 18.214.95.202 ↩ ec2-18-214-95-202.compute-1.amazonaws.com
  • 206.41.74.3 (no PTR)

Mail Server IPs

  • 52.101.41.183 ↩ mail-byapr04cu00307.inbound.protection.outlook.com
  • 40.93.192.1 ↩ mail-dm5pr02cu00201.inbound.protection.outlook.com
  • 52.101.194.12 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
  • 52.101.10.6 ↩ mail-bn1pr21cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:f804::2 ↩ mail-co1pr05cu00402.inbound.protection.outlook.com
  • 2a01:111:f403:f903:: (no PTR)
  • 2a01:111:f403:c927::1 ↩ mail-bn8pr05cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.aziondns.net admin.azion.com 2026040304 43200 7200 1209600 3600
Primary NS (mname)
ns1.aziondns.net
Admin Email (rname)
admin@azion.com
Serial
2026040304
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
3600s

Nameservers (NS)

ns1.aziondns.net
ns3.aziondns.org
ns2.aziondns.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spfa.csu.com.br ip4:201.45.162.212 ip4:201.45.162.220 ip4:201.45.162.218 ip4:201.45.162.217 ip4:189.44.96.252 ip4:189.44.96.250 ip4:189.44.96.249 include:spf.protection.outlook.com -all atlassian-domain-verification=4kawY1vFWRuqNNLgw3HOGNal7a4ipzkEzQkpfuishQlxfpVpe0XEo7A6bWEy/jdC
📊 DNS lookups: 2/10

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ DKIM properly configured for selector: selector1

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

All TXT Records

1 record
  • SPFv=spf1 include:spfa.csu.com.br ip4:201.45.162.212 ip4:201.45.162.220 ip4:201.45.162.218 ip4:201.45.162.217 ip4:189.44.96.252 ip4:189.44.96.250 ip4:189.44.96.249 include:spf.protection.outlook.com -all atlassian-domain-verification=4kawY1vFWRuqNNLgw3HOGNal7a4ipzkEzQkpfuishQlxfpVpe0XEo7A6bWEy/jdC
Full email verification for csu.com.br

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