uan.edu.co

Valid Email Server
Domain Lookup › uan.edu.co

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
uan.edu.co
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-04-03 07:38:42 UTC · ↺ Refresh

MX Hostnames

  • aspmx2.googlemail.com
  • aspmx.l.google.com
  • andromeda.uan.edu.co
  • aspmx3.googlemail.com
  • mail.uan.edu.co
  • aspmx4.googlemail.com
  • alt1.aspmx.l.google.com
  • aspmx5.googlemail.com
  • alt2.aspmx.l.google.com

MX Priorities

  • aspmx3.googlemail.com: 10
  • aspmx2.googlemail.com: 10
  • alt2.aspmx.l.google.com: 5
  • aspmx.l.google.com: 0
  • alt1.aspmx.l.google.com: 5
  • mail.uan.edu.co: 10
  • andromeda.uan.edu.co: 10
  • aspmx5.googlemail.com: 10
  • aspmx4.googlemail.com: 10

A / AAAA Records

  • 186.28.225.11 ↩ static-186-28-225-11.static.etb.net.co

Mail Server IPs

  • 172.253.116.27 ↩ dj-in-f27.1e100.net
  • 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
  • 108.177.123.26 ↩ lcscld-in-f26.1e100.net
  • 2800:3f0:4003:c0f::1b (no PTR)
  • 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
  • 142.251.179.26 ↩ pd-in-f26.1e100.net
  • 2607:f8b0:4004:c1b::1a ↩ wv-in-f26.1e100.net
  • 108.177.123.27 ↩ lcscld-in-f27.1e100.net
  • 2800:3f0:4003:c0f::1a (no PTR)

SOA Record

Raw SOA ns1-auth.etb.net.co postmaster.etb.net.co 164 10800 3600 2419200 900
Primary NS (mname)
ns1-auth.etb.net.co
Admin Email (rname)
postmaster@etb.net.co
Serial
164
Refresh
10800s
Retry
3600s
Expire
2419200s
Minimum TTL
900s

Nameservers (NS)

ns2-auth.etb.net.co
ns1-auth.etb.net.co

SPF Record

✓ Soft Fail (~all)
v=spf1include:zcsend.net~all
📊 DNS lookups: 0/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1;p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

DKIM Selectors

✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ 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-site-verification=81TFec7WmIhpPK26I9Y26j9yyp7tA3o1B30FG4pCv8w
  • SPFv=spf1include:zcsend.net~all
  • v=k=rsa;t=s;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCbmGbQMzYeMvxwtNQoXN0waGYaciuKx8mtMh5czguT4EZlJXuCt6V+l56mmt3t68FEX5JJ0q4ijG71BGoFRkl87uJi7LrQt1ZZmZCvrEII0YO4mp8sDLXC8g1aUAoi8TJgxq2MJqCaMyj5kAm3Fdy2tzftPCV/lbdiJqmBnWKjtwIDAQAB
  • DKIMv=DKIM1; k=rsa; h=sha256; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCsILidQ32kLsJRXe59Kmek1Bh3sdbW8KRFxQtPSKE1acQDFQbFVmH1WEDPlc0UywWSVrGSN270ulGgBY9g7JlPY9n2YWFcUpvDAqNFPh3SRLM96nOUVV0nldBMXrJheAY3EVU8sbsLN5EU2RHWzMXB8Q/F1h8IthxJsSKgdRDpjwIDAQAB
  • DKIMv=DKIM1; k=rsa; h=sha256; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDabgr6gDrybdkUpt9FLW9+WaOYiBZUHMtzdn7fjBvCpkH+LWkRVnAaI53wwgd1vEuvq8u3Cbq2MKUbyRw6Qrp94w0CmXCS1iUaGOPyXj5dekgWDYuSKx68G7sspWT797blA2W9Z/PNc685Zx1Rsn51zyffUyk8r9/C9jfZ5zgVuQIDAQAB
  • SPFv=spf1 a mx include:_spf.elasticemail.com include:_spf.google.com ~all
  • MS=0833F58B9EC774359C181B2300616F4AC06ECC03
Free · No signup required
Add email validation to your forms

Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.

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

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

No credit card required
Get 1,000 Free Credits