Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
tec.ac.cr
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-27 03:54:45 UTC · ↺ Refresh
MX Hostnames
- tec-ac-cr.mail.protection.outlook.com
- mxb-00787001.gslb.pphosted.com
- mxa-00787001.gslb.pphosted.com
MX Priorities
- mxa-00787001.gslb.pphosted.com: 0
- mxb-00787001.gslb.pphosted.com: 0
- tec-ac-cr.mail.protection.outlook.com: 50
A / AAAA Records
- 201.204.122.4 (no PTR)
Mail Server IPs
- 205.220.180.128 ↩ mx0b-00787001.pphosted.com
- 52.101.10.2 ↩ mail-bn8pr03cu00202.inbound.protection.outlook.com
- 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
- 52.101.41.21 ↩ mail-sj2pr05cu00305.inbound.protection.outlook.com
- 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
- 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c902::14 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 2a01:111:f403:f802::2 ↩ mail-sj2pr05cu00202.inbound.protection.outlook.com
- 2a01:111:f403:c902::1 ↩ mail-sj2pr05cu00401.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1-08.azure-dns.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1-08.azure-dns.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns2-08.azure-dns.net
ns3-08.azure-dns.org
ns4-08.azure-dns.info
ns1-08.azure-dns.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf-00787001.pphosted.com include:45887649.spf10.hubspotemail.net -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
k1._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: k1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
7 records- r3j9v0qfq3ksep84q77e227vlk
- qrn1de5dt142upmpqubq04dpf1
- 8b17vo5nnvt2olhe6q177as2bt
- ptmi5dmkk9obqtkfh1n1kijeh0
- tlj0ka162s3o5djoqkkqmekuoi
- i1as2stna2ffchu51lnsql3838
- SPFv=spf1 include:spf.protection.outlook.com include:spf-00787001.pphosted.com include:45887649.spf10.hubspotemail.net -all
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