Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
uniajc.edu.co
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-01 08:58:44 UTC · ↺ Refresh
MX Hostnames
- 1131863682.mail.outlook.com
- 1453783357.mail.outlook.com
- 1849953831.mail.outlook.com
MX Priorities
- 1131863682.mail.outlook.com: 1
- 1453783357.mail.outlook.com: 1
- 1849953831.mail.outlook.com: 1
A / AAAA Records
- 201.234.74.48
Mail Server IPs
- 52.101.9.14 ↩ mail-bl0pr03cu00206.inbound.protection.outlook.com
- 52.101.41.183 ↩ mail-byapr04cu00307.inbound.protection.outlook.com
- 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
- 52.101.11.17 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 2a01:111:f403:f905::3 ↩ mail-dm5pr02cu00203.inbound.protection.outlook.com
- 2a01:111:f403:c91d::b ↩ mail-mw2pr02cu00603.inbound.protection.outlook.com
- 2a01:111:f403:c902:: ↩ mail-sj2pr05cu00300.inbound.protection.outlook.com
- 2a01:111:f403:c802:: ↩ mail-cy4pr03cu00100.inbound.protection.outlook.com
- 52.101.8.42 ↩ mail-dm6pr03cu00402.inbound.protection.outlook.com
- 52.101.11.10 ↩ mail-sa9pr03cu00202.inbound.protection.outlook.com
- 52.101.41.54
- 2a01:111:f403:c902::16
- 2a01:111:f403:c946::6
- 2a01:111:f403:c922::
- 2a01:111:f403:c927::1
- 52.101.11.2
- 52.101.11.7
- 52.101.10.8
- 52.101.194.3
- 2a01:111:f403:f90a::1
- 2a01:111:f403:f902::2
- 2a01:111:f403:c902::3
- 2a01:111:f403:c91d::a
SOA Record
Raw SOA
ns3.telmexla.net.co internet.telmexla.net.co 2026030304 1200 7200 1209600 86400
Primary NS (mname)
ns3.telmexla.net.co
Admin Email (rname)
internet@telmexla.net.co
Serial
2026030304
Refresh
1200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns2.telmexla.net.co
ns3.telmexla.net.co
SPF Record
✓ Soft Fail (~all)
v=spf1 include:outlook.com include:spf.mandrillapp.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
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
6 records- SPFv=spf1 include:outlook.com include:spf.mandrillapp.com ~all
- google-site-verification=3XjN76efYXLlesXs-Vaml1P1oJuavk58Th6mFIbBpH4
- bppoelkhdpvmu6dfhjkjusbkp0
- 2l90javbh44tcl6lrgr7jtbi9d
- google-site-verification=kATSDF2c7pdVZKwUhE94WXfSvFy_WF4phORDBkjdUk0
- 7dqtsq9d0solt8s6bhn15pa49c
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 uniajc.edu.co
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits