Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
psb-academy.edu.sg
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-02 09:31:43 UTC · ↺ Refresh
MX Hostnames
- psbacademy-edu-sg0i.mail.protection.outlook.com
MX Priorities
- psbacademy-edu-sg0i.mail.protection.outlook.com: 10
A / AAAA Records
- 13.251.72.193 ↩ ec2-13-251-72-193.ap-southeast-1.compute.amazonaws.com
Mail Server IPs
- 52.101.124.117 ↩ mail-tydpr03cu00105.inbound.protection.outlook.com
- 52.101.137.0 ↩ mail-sg2pr03cu00500.inbound.protection.outlook.com
- 52.101.157.80 ↩ mail-os8pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:cc1f::4 ↩ mail-os8pr02cu00104.inbound.protection.outlook.com
- 2a01:111:f403:cc1a::8 ↩ mail-tydpr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:cc09:: ↩ mail-sg2pr03cu00500.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.meganameservers.eu postmaster.meganameservers.eu 2026022406 86400 300 3600000 300
Primary NS (mname)
ns1.meganameservers.eu
Admin Email (rname)
postmaster@meganameservers.eu
Serial
2026022406
Refresh
86400s
Retry
300s
Expire
3600000s
Minimum TTL
300s
Nameservers (NS)
ns3.meganameservers.eu
ns1.meganameservers.eu
ns2.meganameservers.eu
SPF Record
✓ Strict (-all)
v=spf1 ip4:103.244.8.0/22 ip4:103.11.188.34 include:turbo-smtp.com include:spf.protection.outlook.com include:lara.imailsmtp.com include:_spf-dc10.sapsf.com include:_spf.qualtrics.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
default._domainkey
k1._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
4 records- adobe-idp-site-verification=f1f8c79605185aab230a70dc3f0e5aa2c4c0b8424ce73c3e9a129575144504f2
- SPFv=spf1 ip4:103.244.8.0/22 ip4:103.11.188.34 include:turbo-smtp.com include:spf.protection.outlook.com include:lara.imailsmtp.com include:_spf-dc10.sapsf.com include:_spf.qualtrics.com -all
- ms=ms74220627
- google-site-verification=Qe97e7o0Nt4O3vtEungnqOjrvZe0sTWdHTBj4RDFQBQ
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