Domain Overview
DNS: ✓ 2d ago
Checker: ✓ 2d ago
lsuc.on.ca
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-05-18 18:49:12 UTC · ↺ Refresh
MX Hostnames
- lsuc-on-ca.mail.protection.outlook.com
MX Priorities
- lsuc-on-ca.mail.protection.outlook.com: 0
A / AAAA Records
- 142.57.33.102 ↩ www.lsuc.on.ca
Mail Server IPs
- 52.101.190.0 ↩ mail-yt5pr01cu00100.inbound.protection.outlook.com
- 52.101.192.1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com
- 52.101.190.2 ↩ mail-yt3pr01cu00602.inbound.protection.outlook.com
- 52.101.190.3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
- 2a01:111:f403:c942:: ↩ mail-yt5pr01cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c942::2 ↩ mail-yt3pr01cu00602.inbound.protection.outlook.com
- 2a01:111:f403:c944:: ↩ mail-yqzpr01cu00900.inbound.protection.outlook.com
- 2a01:111:f403:c942::3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
SOA Record
Raw SOA
amanda.ns.cloudflare.com dns.cloudflare.com 2402355606 10000 2400 604800 1800
Primary NS (mname)
amanda.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2402355606
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
amanda.ns.cloudflare.com
bart.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.boardbooks.com include:emailcampaigns.net ip4:40.86.223.209 ip4:142.57.121.22 ip4:209.251.56.42 ip4:209.251.57.140 ip4:142.57.16.161 ip4:199.244.76.0/24 ip4:207.126.101.0/24 ip4:209.251.63.0/24 include:sendgrid.net ip4:192.254.125.154 ip4:40.85.215.3 include:spf.protection.outlook.com ip4:192.75.141.122 ip4:142.57.16.45 ip4:66.207.199.235 ip4:66.207.199.234 -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 5 found
selector1._domainkey
selector2._domainkey
mail._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
1 record- SPFv=spf1 include:spf.boardbooks.com include:emailcampaigns.net ip4:40.86.223.209 ip4:142.57.121.22 ip4:209.251.56.42 ip4:209.251.57.140 ip4:142.57.16.161 ip4:199.244.76.0/24 ip4:207.126.101.0/24 ip4:209.251.63.0/24 include:sendgrid.net ip4:192.254.125.154 ip4:40.85.215.3 include:spf.protection.outlook.com ip4:192.75.141.122 ip4:142.57.16.45 ip4:66.207.199.235 ip4:66.207.199.234 -all
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