tesicol.com.co

Valid Email Server

Domain Overview

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

Checked via [email protected] · 2026-03-22 05:49:49 UTC · ↺ Refresh

MX Hostnames

  • tesicol-com-co.mail.protection.outlook.com

MX Priorities

  • tesicol-com-co.mail.protection.outlook.com: 10

A / AAAA Records

  • 172.67.155.173 (no PTR)
  • 104.21.72.234 (no PTR)
  • 2606:4700:3032::6815:48ea
  • 2606:4700:3037::ac43:9bad

Mail Server IPs

  • 52.101.11.15 ↩ mail-sa9pr02cu00207.inbound.protection.outlook.com
  • 52.101.11.17 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
  • 52.101.40.2 ↩ mail-cy1pr05cu00402.inbound.protection.outlook.com
  • 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:c91d:: ↩ mail-mw2pr04cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c91d::b ↩ mail-mw2pr02cu00603.inbound.protection.outlook.com
  • 2a01:111:f403:c92c::4 ↩ mail-dm6pr05cu00404.inbound.protection.outlook.com
  • 2a01:111:f403:c801:: ↩ mail-sa9pr02cu00200.inbound.protection.outlook.com

SOA Record

Raw SOA mitch.ns.cloudflare.com dns.cloudflare.com 2398904322 10000 2400 604800 1800
Primary NS (mname)
mitch.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398904322
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

mitch.ns.cloudflare.com
sofia.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 ip4:162.215.132.183 include:spf.protection.outlook.com ip4:162.144.42.228 ip4:162.214.1.47 include:_spf.goskope.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; pct=100; ri=86400
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 3 found
selector1._domainkey
selector2._domainkey
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1

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

All TXT Records

3 records
  • SPFv=spf1 ip4:162.215.132.183 include:spf.protection.outlook.com ip4:162.144.42.228 ip4:162.214.1.47 include:_spf.goskope.com -all
  • MS=ms86429662
  • google-site-verification=UKCxNo2WigR3vVe1V24xPkYkRYb6nQrUf-QEToSVyEw
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 tesicol.com.co

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

No credit card required
Get 1,000 Free Credits