Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
bc.com.co
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-22 07:28:12 UTC · ↺ Refresh
MX Hostnames
- bc-com-co.mail.protection.outlook.com
MX Priorities
- bc-com-co.mail.protection.outlook.com: 0
A / AAAA Records
- 52.6.181.253 ↩ ec2-52-6-181-253.compute-1.amazonaws.com
Mail Server IPs
- 52.101.41.180 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 52.101.8.44 ↩ mail-dm5pr04cu00104.inbound.protection.outlook.com
- 52.101.9.0 ↩ mail-bl2pr02cu00100.inbound.protection.outlook.com
- 52.101.40.0 ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 2a01:111:f403:f902:: ↩ mail-bl2pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c902::6 ↩ mail-sj0pr21cu00106.inbound.protection.outlook.com
- 2a01:111:f403:f909:: ↩ mail-bn6pr04cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
ns20.columbus-networks.com ipcolombia.columbus.co 2018101267 10800 3600 604800 38400
Primary NS (mname)
ns20.columbus-networks.com
Admin Email (rname)
ipcolombia@columbus.co
Serial
2018101267
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
38400s
Nameservers (NS)
ns20.columbus-networks.com
ns22.columbus-networks.com
ns21.columbus-networks.com
SPF Record
✓ Soft Fail (~all)
v=spf1 a ip4:190.242.37.70 include:spf.protection.outlook.com include:spf.mandrillapp.com include:_spf.embluemail.com include:spf.fromdoppler.com include:sendgrid.net ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=none; aspf=s; adkim=s
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ 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 a ip4:190.242.37.70 include:spf.protection.outlook.com include:spf.mandrillapp.com include:_spf.embluemail.com include:spf.fromdoppler.com include:sendgrid.net ~all
- F/nqWLQ/v5DvoCPlcS67VU7s6F87+K1DOveezh13j3cZtd+ZR3VlQMIIIKtuYrIP94FqliIn6S58MOY+xtLBwQ==
- smartfense-domain-verification=_V7QSrPSTmm1x84hetkRg-_0cMgXkNPAAB775wWojW5WGwPF
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