Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
star-education.ch
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 11:37:37 UTC · ↺ Refresh
MX Hostnames
- stareducation-ch01b.mail.protection.outlook.com
MX Priorities
- stareducation-ch01b.mail.protection.outlook.com: 0
A / AAAA Records
- 185.10.52.38 (no PTR)
Mail Server IPs
- 52.101.185.12 ↩ mail-zrap278cu00304.inbound.protection.outlook.com
- 52.101.185.14 ↩ mail-zr1p278cu00206.inbound.protection.outlook.com
- 52.101.185.13 ↩ mail-zrzp278cu00205.inbound.protection.outlook.com
- 52.101.187.1 ↩ mail-gvap278cu00301.inbound.protection.outlook.com
- 2a01:111:f403:ca3e::1 ↩ mail-gvap278cu00301.inbound.protection.outlook.com
- 2a01:111:f403:ca3c:: ↩ mail-zrap278cu00300.inbound.protection.outlook.com
- 2a01:111:f403:ca3c::1 ↩ mail-zrzp278cu00201.inbound.protection.outlook.com
- 2a01:111:f403:ca3c::2 ↩ mail-zr1p278cu00202.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.yoursrs.com hostmaster.star-education.ch 2025052103 16384 2048 1209600 86400
Primary NS (mname)
ns1.yoursrs.com
Admin Email (rname)
hostmaster@star-education.ch
Serial
2025052103
Refresh
16384s
Retry
2048s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns1.yoursrs.com
ns2.yoursrs.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.smtp2go.com include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=reject; pct=100; adkim=r; aspf=r
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
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- MS=ms24615163
- google-site-verification=p4-3PmFHOl5i8kcUw0ajWyquNfSeJ1DXpu5CAW07juI
- SPFv=spf1 include:spf.smtp2go.com include:spf.protection.outlook.com -all
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