Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sd42.ca
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-26 04:12:23 UTC · ↺ Refresh
MX Hostnames
- sd42-ca.mail.protection.outlook.com
MX Priorities
- sd42-ca.mail.protection.outlook.com: 0
A / AAAA Records
- 52.151.38.37 (no PTR)
Mail Server IPs
- 52.101.190.0 ↩ mail-yt5pr01cu00100.inbound.protection.outlook.com
- 52.101.192.0 ↩ mail-yqzpr01cu00900.inbound.protection.outlook.com
- 52.101.192.1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com
- 52.101.190.3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
- 2a01:111:f403:c942::2 ↩ mail-yt3pr01cu00602.inbound.protection.outlook.com
- 2a01:111:f403:c942:: ↩ mail-yt5pr01cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c944::1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com
- 2a01:111:f403:c942::3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1-01.azure-dns.com hostmaster.sd42.ca 2017082330 1200 600 1209600 3600
Primary NS (mname)
ns1-01.azure-dns.com
Admin Email (rname)
hostmaster@sd42.ca
Serial
2017082330
Refresh
1200s
Retry
600s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
ns2-01.azure-dns.net
ns3-01.azure-dns.org
ns4-01.azure-dns.info
ns1-01.azure-dns.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:142.22.108.50 ip4:142.22.108.51 a:mail.sd42.ca include:u34370123.wl124.sendgrid.net include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
9 records- v=msv1 t=FA53C106-4344-47C0-B3F7-EF62E7E92228
- v=msv1 t=f01a1ebb61ccd0409c2b1fc183d707
- SPFv=spf1 ip4:142.22.108.50 ip4:142.22.108.51 a:mail.sd42.ca include:u34370123.wl124.sendgrid.net include:spf.protection.outlook.com -all
- jamf-site-verification=TP31lqWyxvswoLnqbcAx8g
- MS=ms46606974
- UwyZazvbK3zTDkYnTze2DHPui1ruL34TPYST3RBcRaDTfG1hDNJHWUJMSafVMquIOVGXvok3FktYqFbQ8p7ZcA==
- apple-domain-verification=qpLw5SI9Zed73cew
- ppu3gsc0imufj98f25j9jdr7ii
- uQ4z2Kf7IkHYPx+KfeiNaAQQT5HcbmaCLATQMzfVhOMSiseFo5M+11cqmNyf/r1EopMqyCVlOkZ79WxcWRx7+g==
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