Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
uao.edu.co
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-04 13:08:43 UTC · ↺ Refresh
MX Hostnames
- alt3.aspmx.l.google.com
- aspmx.l.google.com
- alt4.aspmx.l.google.com
- alt1.aspmx.l.google.com
- alt2.aspmx.l.google.com
MX Priorities
- aspmx.l.google.com: 1
- alt3.aspmx.l.google.com: 10
- alt4.aspmx.l.google.com: 20
- alt1.aspmx.l.google.com: 5
- alt2.aspmx.l.google.com: 5
A / AAAA Records
- 172.67.73.231
- 104.26.9.14
- 104.26.8.14
- 2606:4700:20::681a:80e
- 2606:4700:20::681a:90e
- 2606:4700:20::ac43:49e7
Mail Server IPs
- 142.251.179.26 ↩ pd-in-f26.1e100.net
- 2607:f8b0:4004:c21::1b ↩ pe-in-f27.1e100.net
- 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
- 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
- 173.194.76.27 ↩ ws-in-f27.1e100.net
- 2a00:1450:400c:c00::1a ↩ ws-in-f26.1e100.net
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
- 172.253.116.27 ↩ dj-in-f27.1e100.net
- 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
SOA Record
Raw SOA
ernest.ns.cloudflare.com dns.cloudflare.com 2400128270 10000 2400 604800 1800
Primary NS (mname)
ernest.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400128270
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
kate.ns.cloudflare.com
ernest.ns.cloudflare.com
SPF Record
✗ Invalid
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
📊 DNS lookups: 15/10
— over limit!
⚠ Too many DNS lookups (15/10) — SPF will fail validation. Reduce include: statements.
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
google._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
9 records- 5b4wdrs50splqq227cd9htf5v5q8l8j8
- adobe-idp-site-verification=408ba26fd510abe0c88ed2590704d1906c4dec5d45254c5f06da42f77a972c2c
- apple-domain-verification=OLznbYi7EOdCcoyU
- cisco-ci-domain-verification=2cdeffa4f65b13d647c92e396747653d0014ff5f4aefe11d11225de098ce2cf4
- google-site-verification=90Db3ibt5AmKL8SucIqpGCb3JVICDNwXClAm5WiHMFo
- google-site-verification=PE4C9qfh3T0yfyz0KLauqtOoKrudXJbHTdAdqjWfvbo
- google-site-verification=snmeiLjDg4b8q5aYJPtv-3dKzBNmyjuYohVxVVtzhNg
- s1s9z8jq2v45434q18bt40wl6kgzj1bl
- SPFv=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
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