Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
tigo.co.cr
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-03 06:25:51 UTC · ↺ Refresh
MX Hostnames
- tigo-co-cr.mail.protection.outlook.com
- millicomhq.in.tmes.trendmicro.com
MX Priorities
- tigo-co-cr.mail.protection.outlook.com: 15
- millicomhq.in.tmes.trendmicro.com: 10
A / AAAA Records
- 107.21.255.81 ↩ ec2-107-21-255-81.compute-1.amazonaws.com
Mail Server IPs
- 52.101.68.25 ↩ mail-db8pr02cu00101.inbound.protection.outlook.com
- 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
- 52.101.73.11 ↩ mail-am1pr04cu00103.inbound.protection.outlook.com
- 52.101.68.32 ↩ mail-db3pr0202cu00200.inbound.protection.outlook.com
- 18.208.22.79 ↩ in.tmes.trendmicro.com
- 18.208.22.78 ↩ in.tmes.trendmicro.com
- 18.208.22.80 ↩ in.tmes.trendmicro.com
- 18.208.22.77 ↩ in.tmes.trendmicro.com
SOA Record
Raw SOA
dns1.amnet.co.cr core.amnet.co.cr 2026031800 86400 900 1209600 3600
Primary NS (mname)
dns1.amnet.co.cr
Admin Email (rname)
core@amnet.co.cr
Serial
2026031800
Refresh
86400s
Retry
900s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
nsa01.tigo.co.cr
nsa03.tigo.co.cr
dns1.amnet.co.cr
dns2.amnet.co.cr
nsa02.tigo.co.cr
dns9.amnet.co.cr
dns5.amnet.co.cr
nsa04.tigo.co.cr
SPF Record
✓ Strict (-all)
v=spf1 ip4:186.177.70.190 include:tigocostarica.co.cr include:spf.protection.outlook.com include:mail.zendesk.com include:spf.tmes.trendmicro.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected],mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 5 found
selector1._domainkey
selector2._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 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
8 records- MS=ms41570361
- amazonses:n46Eg9z4y18BqbBQxMsyzGNg+QoOzosHHmdeM03OHgE=
- v=sfp1 include:servers.mcsv.net ?all
- MS=ms70996280
- DMARCv=DMARC1; p=none; rua=mailto:[email protected]
- SPFv=spf1 ip4:186.177.70.190 include:tigocostarica.co.cr include:spf.protection.outlook.com include:mail.zendesk.com include:spf.tmes.trendmicro.com -all
- tmes=2a73ce698530386257b4f237c63ac7d0
- knowbe4-site-verification=30933b22759e13d927e4d7290396ab52
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