alumina.com.co

Valid Email Server
Domain Lookup › alumina.com.co

Domain Overview

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

Checked via [email protected] · 2026-03-22 07:51:07 UTC · ↺ Refresh

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MX Hostnames

  • cluster1.us.messagelabs.com
  • cluster1a.us.messagelabs.com

MX Priorities

  • cluster1.us.messagelabs.com: 10
  • cluster1a.us.messagelabs.com: 20

A / AAAA Records

  • 104.236.200.10 (no PTR)

Mail Server IPs

  • 67.219.246.210 ↩ mail909.messagelabs.com
  • 67.219.246.208 ↩ mail907.messagelabs.com
  • 67.219.247.202 ↩ mail930.messagelabs.com
  • 67.219.250.218 ↩ mail951.messagelabs.com
  • 67.219.246.215 ↩ mail901.messagelabs.com
  • 67.219.250.212 ↩ mail943.messagelabs.com
  • 67.219.247.106 ↩ mail923.messagelabs.com
  • 67.219.247.204 ↩ mail931.messagelabs.com
  • 34.75.172.113 ↩ 113.172.75.34.bc.googleusercontent.com

SOA Record

Raw SOA nameserver01.mi.com.co hostmaster.alumina.com.co 1773878400 10800 3600 1209600 3600
Primary NS (mname)
nameserver01.mi.com.co
Admin Email (rname)
hostmaster@alumina.com.co
Serial
1773878400
Refresh
10800s
Retry
3600s
Expire
1209600s
Minimum TTL
3600s

Nameservers (NS)

nameserver01.mi.com.co
nameserver02.mi.com.co
nameserver03.mi.com.co
nameserver04.mi.com.co

SPF Record

✓ Strict (-all)
v=spf1 ip4:198.2.186.210 ip4:67.228.34.32/27 ip4:173.236.20.0/24 ip4:108.178.6.0/24 ip4:192.92.97.0/24 ip4:52.128.40.0/21 ip4:13.79.153.63 ip4:52.169.54.174 ip4:77.95.152.49 ip4:77.95.152.247 ip4:52.232.44.182 ip4:52.232.113.153 ip4:52.233.236.188 ip4:212.170.96.38 ip4:205.201.128.0/20 ip4:198.2.128.0/18 ip4:148.105.0.0/16 include:spf.protection.outlook.com include:spf.messagelabs.com include:spf.mandrillapp.com include:servers.mcsv.net include:spf.sendinblue.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

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

All TXT Records

4 records
  • SPFv=spf1 ip4:198.2.186.210 ip4:67.228.34.32/27 ip4:173.236.20.0/24 ip4:108.178.6.0/24 ip4:192.92.97.0/24 ip4:52.128.40.0/21 ip4:13.79.153.63 ip4:52.169.54.174 ip4:77.95.152.49 ip4:77.95.152.247 ip4:52.232.44.182 ip4:52.232.113.153 ip4:52.233.236.188 ip4:212.170.96.38 ip4:205.201.128.0/20 ip4:198.2.128.0/18 ip4:148.105.0.0/16 include:spf.protection.outlook.com include:spf.messagelabs.com include:spf.mandrillapp.com include:servers.mcsv.net include:spf.sendinblue.com -all
  • MS=ms52495014
  • mKtCP3UUhX8lS+QbwRcb1wVQRYV9AH3yOEwO+XT7znV6TfPy5mm4vjyb4Sxc0/CDcoTnpaUZouun7ruCoTBnrA==
  • E+csKsk3eZLLWhp5P5hQyc/k/VNEKu+lPwk9HymP3pqz3XH7/WFMKyjFsnRire8oDiNEPHxCjRxzAfOYJdJ8Bg==
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