Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sinaes.ac.cr
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-24 05:57:17 UTC · ↺ Refresh
MX Hostnames
- sinaes-ac-cr.mail.protection.outlook.com
MX Priorities
- sinaes-ac-cr.mail.protection.outlook.com: 0
A / AAAA Records
- 179.0.21.20 (no PTR)
Mail Server IPs
- 52.101.9.26 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 52.101.41.4 ↩ mail-sj2pr05cu00204.inbound.protection.outlook.com
- 52.101.194.13 ↩ mail-ch0pr04cu00605.inbound.protection.outlook.com
- 52.101.8.42 ↩ mail-dm6pr03cu00402.inbound.protection.outlook.com
- 2a01:111:f403:f902::2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
- 2a01:111:f403:f802:: ↩ mail-byapr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:c91d::a ↩ mail-co1pr21cu00202.inbound.protection.outlook.com
- 2a01:111:f403:c92c::2 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
SOA Record
Raw SOA
pdns01.domaincontrol.com dns.jomax.net 2025121500 28800 7200 604800 600
Primary NS (mname)
pdns01.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2025121500
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
pdns01.domaincontrol.com
pdns02.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:179.0.21.18 ip4:201.199.193.38 ip4:179.0.20.2 ip4:201.201.187.34 ip4:201.192.214.214 include:mcdlv.net include:rsgsv.net include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;pct=100;rua=mailto:[email protected],mailto:[email protected];ruf=mailto:[email protected];fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 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
6 records- jkj43bjoo3l9n9leslqlu3qt9j
- mm09erv12ua1uq9u1oeqf2l9aa
- pokproof:0x4efaccb94cfbd20b6bd28ce7653816734878f6f2ca536df62558b39f29670821
- to8nrp9cm5j6m113n5o5gfp592
- MS=ms51560783
- SPFv=spf1 ip4:179.0.21.18 ip4:201.199.193.38 ip4:179.0.20.2 ip4:201.201.187.34 ip4:201.192.214.214 include:mcdlv.net include:rsgsv.net include:spf.protection.outlook.com -all
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