uao.edu.co

Email infrastructure report · Last checked 28 Jul 2026, 18:24 UTC

Summary

uao.edu.co uses Google Workspace for email and has SPF, DKIM, and DMARC configured. It is not catch-all.

Mail provider

ProviderGoogle Workspace business

Primary MXaspmx.l.google.com

MX records

Priority	Hostname	IPs
1	aspmx.l.google.com	209.85.202.26, 2a00:1450:400b:c03::1a
5	alt1.aspmx.l.google.com	172.253.157.27, 2a00:1450:400c:c23::1a
5	alt2.aspmx.l.google.com	142.250.102.27, 2a00:1450:4025:402::1a
10	alt3.aspmx.l.google.com	192.178.213.26, 2a00:1450:4013:c1e::1a
20	alt4.aspmx.l.google.com	142.251.127.26, 2a00:1450:4001:c21::1b

Authentication

SPF✓ Present ~all

DKIM✓ Found (selectors: google, k1, s1, s2)

DMARC✓ Present p=quarantine

Raw SPF record

v=spf1 include:_spf.google.com include:amazonses.com include:44653845.spf08.hubspotemail.net include:_spf.mlsend.com mx:uao-edu-co.mail.protection.outlook.com ip4:181.118.150.100 include:spf.protection.outlook.com include:_spf.salesforce.com include:servers.mcsv.net include:mh.blackboard.com include:44653845.spf10.hubspotemail.net include:mktomail.com include:emailsrvr.com include:eu.mailgun.org include:mailgun.org include:emsd1.com ip4:154.38.170.96 ~all

Raw DMARC record

v=DMARC1; p=quarantine; rua=mailto:postmaster@uao.edu.co;

Email behavior

Catch-all✗ No

Disposable✗ No

Free provider✗ No

STARTTLS✓ Supported

SMTP response52ms

SMTP banner220 mx.google.com ESMTP ffacd0b85a97d-47fb6b43670si666145f8f.392 - gsmtp

What this means

This domain has strong email authentication. Messages claiming to come from @uao.edu.co can be cryptographically verified by recipients, making spoofing difficult. Deliverability for legitimate mail should be good.

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curl https://api.checkmail.dev/v1/verify \
  -G --data-urlencode "email=test@uao.edu.co" \
  -H "Authorization: Bearer cm_live_..."