Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
go.co
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-04 05:02:16 UTC · ↺ Refresh
MX Hostnames
- cointernet-com-co.mail.protection.outlook.com
MX Priorities
- cointernet-com-co.mail.protection.outlook.com: 10
A / AAAA Records
- 34.204.39.241 ↩ ec2-34-204-39-241.compute-1.amazonaws.com
- 54.85.227.149 ↩ ec2-54-85-227-149.compute-1.amazonaws.com
Mail Server IPs
- 52.101.10.1 ↩ mail-bn6pr02cu00301.inbound.protection.outlook.com
- 52.101.50.4 ↩ mail-co1pr03cu00404.inbound.protection.outlook.com
- 52.101.8.51 ↩ mail-dm1pr04cu00203.inbound.protection.outlook.com
- 52.101.10.5 ↩ mail-bn6pr04cu00105.inbound.protection.outlook.com
- 2a01:111:f403:c946::7 ↩ mail-ch5pr02cu00307.inbound.protection.outlook.com
- 2a01:111:f403:c91d::b ↩ mail-mw2pr02cu00603.inbound.protection.outlook.com
- 2a01:111:f403:c902::4 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
- 2a01:111:f403:c927::1 ↩ mail-bn8pr05cu00301.inbound.protection.outlook.com
SOA Record
Raw SOA
udns1.ultradns.net soporte.cointernet.com.co 1438808405 10800 3600 604800 900
Primary NS (mname)
udns1.ultradns.net
Admin Email (rname)
soporte@cointernet.com.co
Serial
1438808405
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
900s
Nameservers (NS)
pdns196.ultradns.biz
pdns196.ultradns.com
pdns196.ultradns.net
pdns196.ultradns.org
pdns196.ultradns.info
udns1.ultradns.net
udns2.ultradns.net
pdns196.ultradns.co.uk
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:_spf.salesforce.com include:_spf.createsend.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected]; rf=afrf; fo=1;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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- amazonses:aMyJvbkpNUVGS+OxWOcOdgnFadIqfYBFMeWB6ksjgbs=
- ol48HxJLACIbKK9FWejRxUde+ktJQYhu4O1uKQvEeC22h5ZTzCcnyvVa7IAoVEbY4Ls6+rOjUKsldjKE03DEmw==
- SPFv=spf1 include:spf.protection.outlook.com include:_spf.salesforce.com include:_spf.createsend.com -all
Full email verification for go.co
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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